chore: build with Go 1.26; use Go 1.25 features (#10570)

WaitGroup.Go and built-in gomaxprocs handling.

Signed-off-by: Jakob Borg <jakob@kastelo.net>

go.mod

@@ -1,10 +1,10 @@
 module github.com/syncthing/syncthing
 
-go 1.24.0
+go 1.25.0
 
 require (
 	github.com/AudriusButkevicius/recli v0.0.7
-	github.com/alecthomas/kong v1.12.1
+	github.com/alecthomas/kong v1.14.0
 	github.com/aws/aws-sdk-go v1.55.8
 	github.com/calmh/incontainer v1.0.0
 	github.com/calmh/xdr v1.2.0
@@ -12,27 +12,27 @@ require (
 	github.com/coreos/go-semver v0.3.1
 	github.com/d4l3k/messagediff v1.2.1
 	github.com/getsentry/raven-go v0.2.0
-	github.com/go-ldap/ldap/v3 v3.4.11
+	github.com/go-ldap/ldap/v3 v3.4.12
 	github.com/gobwas/glob v0.2.3
-	github.com/gofrs/flock v0.12.1
+	github.com/gofrs/flock v0.13.0
 	github.com/hashicorp/golang-lru/v2 v2.0.7
-	github.com/jackpal/gateway v1.0.16
+	github.com/jackpal/gateway v1.1.1
 	github.com/jackpal/go-nat-pmp v1.0.2
 	github.com/jmoiron/sqlx v1.4.0
 	github.com/julienschmidt/httprouter v1.3.0
 	github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51
 	github.com/maruel/panicparse/v2 v2.5.0
-	github.com/mattn/go-sqlite3 v1.14.31
+	github.com/mattn/go-sqlite3 v1.14.34
 	github.com/maxmind/geoipupdate/v6 v6.1.0
 	github.com/miscreant/miscreant.go v0.0.0-20200214223636-26d376326b75
 	github.com/oschwald/geoip2-golang v1.13.0
-	github.com/pierrec/lz4/v4 v4.1.22
-	github.com/prometheus/client_golang v1.23.0
+	github.com/pierrec/lz4/v4 v4.1.25
+	github.com/prometheus/client_golang v1.23.2
 	github.com/puzpuzpuz/xsync/v3 v3.5.1
-	github.com/quic-go/quic-go v0.56.0
+	github.com/quic-go/quic-go v0.59.0
 	github.com/rabbitmq/amqp091-go v1.10.0
 	github.com/rcrowley/go-metrics v0.0.0-20250401214520-65e299d6c5c9
-	github.com/shirou/gopsutil/v4 v4.25.6 // https://github.com/shirou/gopsutil/issues/1898
+	github.com/shirou/gopsutil/v4 v4.26.1 // https://github.com/shirou/gopsutil/issues/1898
 	github.com/syncthing/notify v0.0.0-20250528144937-c7027d4f7465
 	github.com/syndtr/goleveldb v1.0.1-0.20220721030215-126854af5e6d
 	github.com/thejerf/suture/v4 v4.0.6
@@ -40,15 +40,14 @@ require (
 	github.com/vitrun/qart v0.0.0-20160531060029-bf64b92db6b0
 	github.com/willabides/kongplete v0.4.0
 	github.com/wlynxg/anet v0.0.5
-	go.uber.org/automaxprocs v1.6.0
-	golang.org/x/crypto v0.44.0
-	golang.org/x/exp v0.0.0-20250811191247-51f88131bc50
-	golang.org/x/net v0.47.0
-	golang.org/x/sys v0.38.0
-	golang.org/x/text v0.31.0
-	golang.org/x/time v0.12.0
-	google.golang.org/protobuf v1.36.7
-	modernc.org/sqlite v1.38.2
+	golang.org/x/crypto v0.48.0
+	golang.org/x/exp v0.0.0-20260209203927-2842357ff358
+	golang.org/x/net v0.50.0
+	golang.org/x/sys v0.41.0
+	golang.org/x/text v0.34.0
+	golang.org/x/time v0.14.0
+	google.golang.org/protobuf v1.36.11
+	modernc.org/sqlite v1.45.0
 	sigs.k8s.io/yaml v1.6.0
 )
 
@@ -61,7 +60,7 @@ require (
 	github.com/cpuguy83/go-md2man/v2 v2.0.7 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
-	github.com/ebitengine/purego v0.8.4 // indirect
+	github.com/ebitengine/purego v0.9.1 // indirect
 	github.com/fsnotify/fsnotify v1.7.0 // indirect
 	github.com/go-asn1-ber/asn1-ber v1.5.8-0.20250403174932-29230038a667 // indirect
 	github.com/go-ole/go-ole v1.3.0 // indirect
@@ -75,7 +74,7 @@ require (
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/maxbrunsfeld/counterfeiter/v6 v6.12.0 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
-	github.com/ncruces/go-strftime v0.1.9 // indirect
+	github.com/ncruces/go-strftime v1.0.0 // indirect
 	github.com/nxadm/tail v1.4.11 // indirect
 	github.com/oschwald/maxminddb-golang v1.13.1 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
@@ -83,24 +82,24 @@ require (
 	github.com/posener/complete v1.2.3 // indirect
 	github.com/power-devops/perfstat v0.0.0-20240221224432-82ca36839d55 // indirect
 	github.com/prometheus/client_model v0.6.2 // indirect
-	github.com/prometheus/common v0.65.0 // indirect
+	github.com/prometheus/common v0.66.1 // indirect
 	github.com/prometheus/procfs v0.16.1 // indirect
 	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
 	github.com/riywo/loginshell v0.0.0-20200815045211-7d26008be1ab // indirect
 	github.com/rogpeppe/go-internal v1.12.0 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/stretchr/objx v0.5.2 // indirect
-	github.com/stretchr/testify v1.10.0 // indirect
-	github.com/tklauser/go-sysconf v0.3.15 // indirect
-	github.com/tklauser/numcpus v0.10.0 // indirect
+	github.com/stretchr/testify v1.11.1 // indirect
+	github.com/tklauser/go-sysconf v0.3.16 // indirect
+	github.com/tklauser/numcpus v0.11.0 // indirect
 	github.com/yusufpapurcu/wmi v1.2.4 // indirect
 	go.yaml.in/yaml/v2 v2.4.2 // indirect
-	golang.org/x/mod v0.30.0 // indirect
-	golang.org/x/sync v0.18.0 // indirect
-	golang.org/x/telemetry v0.0.0-20251111182119-bc8e575c7b54 // indirect
-	golang.org/x/tools v0.39.0 // indirect
+	golang.org/x/mod v0.33.0 // indirect
+	golang.org/x/sync v0.19.0 // indirect
+	golang.org/x/telemetry v0.0.0-20260209163413-e7419c687ee4 // indirect
+	golang.org/x/tools v0.42.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
-	modernc.org/libc v1.66.3 // indirect
+	modernc.org/libc v1.67.6 // indirect
 	modernc.org/mathutil v1.7.1 // indirect
 	modernc.org/memory v1.11.0 // indirect
 )