Prepare v2.2.5 release

Change-Id: I8367155b6b51b1863964e8676371531608a61569
Reviewed-on: http://review.couchbase.org/c/gocb/+/159608
Reviewed-by: Brett Lawson <brett19@gmail.com>
Tested-by: Charles Dixon <chvckd@gmail.com>

constants.go

@@ -8,7 +8,7 @@ import (
 )
 
 const (
-	goCbVersionStr = "v2.2.4"
+	goCbVersionStr = "v2.2.5"
 
 	durabilityTimeoutFloor = 1500 * time.Millisecond
 )

go.mod

@@ -1,7 +1,7 @@
 module github.com/couchbase/gocb/v2
 
 require (
-	github.com/couchbase/gocbcore/v9 v9.1.6-0.20210812080719-dce69926fdc8
+	github.com/couchbase/gocbcore/v9 v9.1.6
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/google/uuid v1.1.1
 	github.com/pkg/errors v0.9.1

go.sum

@@ -1,5 +1,5 @@
-github.com/couchbase/gocbcore/v9 v9.1.6-0.20210812080719-dce69926fdc8 h1:6Zrf+bk+h962I0BbJTPVDQpBQh3VISxniJVmChitJj0=
-github.com/couchbase/gocbcore/v9 v9.1.6-0.20210812080719-dce69926fdc8/go.mod h1:jOSQeBSECyNvD7aS4lfuaw+pD5t6ciTOf8hrDP/4Nus=
+github.com/couchbase/gocbcore/v9 v9.1.6 h1:5tCvgy3SPFhcje6Q7KhshXg3DJ9j8eqm2BsOBsj4Ivo=
+github.com/couchbase/gocbcore/v9 v9.1.6/go.mod h1:jOSQeBSECyNvD7aS4lfuaw+pD5t6ciTOf8hrDP/4Nus=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=