build(deps): bump github.com/go-ldap/ldap/v3 from 3.1.10 to 3.2.0 (#6783)

Bumps [github.com/go-ldap/ldap/v3](https://github.com/go-ldap/ldap) from 3.1.10 to 3.2.0.
- [Release notes](https://github.com/go-ldap/ldap/releases)
- [Commits](https://github.com/go-ldap/ldap/compare/v3.1.10...v3.2.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

go.mod

@@ -3,6 +3,7 @@ module github.com/syncthing/syncthing
 require (
 	github.com/AudriusButkevicius/pfilter v0.0.0-20190627213056-c55ef6137fc6
 	github.com/AudriusButkevicius/recli v0.0.5
+	github.com/Azure/go-ntlmssp v0.0.0-20200615164410-66371956d46c // indirect
 	github.com/StackExchange/wmi v0.0.0-20190523213315-cbe66965904d // indirect
 	github.com/bkaradzic/go-lz4 v0.0.0-20160924222819-7224d8d8f27e
 	github.com/calmh/xdr v1.1.0
@@ -13,7 +14,7 @@ require (
 	github.com/dgraph-io/badger/v2 v2.0.3
 	github.com/flynn-archive/go-shlex v0.0.0-20150515145356-3f9db97f8568
 	github.com/getsentry/raven-go v0.2.0
-	github.com/go-ldap/ldap/v3 v3.1.10
+	github.com/go-ldap/ldap/v3 v3.2.0
 	github.com/go-ole/go-ole v1.2.4 // indirect
 	github.com/gobwas/glob v0.2.3
 	github.com/gogo/protobuf v1.3.1