Bump golang.org/x/mod (#995)

Bumps [golang.org/x/mod](https://github.com/golang/mod) from 0.13.0 to 0.14.0.
- [Commits](golang/mod@v0.13.0...v0.14.0)

---
updated-dependencies:
- dependency-name: golang.org/x/mod
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

serverless/deploy/github/distributor/combine_witness_signatures/go.mod

@@ -6,6 +6,6 @@ require (
 	github.com/golang/glog v1.1.2
 	github.com/google/trillian-examples v0.0.0-20230612102034-f5649fd8da9c
 	github.com/transparency-dev/formats v0.0.0-20230607101544-c064fae4cff6
-	golang.org/x/mod v0.13.0
+	golang.org/x/mod v0.14.0
 	gopkg.in/yaml.v2 v2.4.0
 )

serverless/deploy/github/distributor/combine_witness_signatures/go.sum

@@ -5,8 +5,8 @@ github.com/google/trillian-examples v0.0.0-20230612102034-f5649fd8da9c h1:1qzAw8
 github.com/google/trillian-examples v0.0.0-20230612102034-f5649fd8da9c/go.mod h1:kGOthhwcHsdJJC5gpS6kgXglpXvX2K4W5khPeGbGZ80=
 github.com/transparency-dev/formats v0.0.0-20230607101544-c064fae4cff6 h1:Mjc7czQhATVAWBRZecClSQlWFMiW/42AZdYzp4qRnqQ=
 github.com/transparency-dev/formats v0.0.0-20230607101544-c064fae4cff6/go.mod h1:Nb+V5XS9fhtScBd8Zb7BmCywNSu1eGQvJqGXodST9cw=
-golang.org/x/mod v0.13.0 h1:I/DsJXRlw/8l/0c24sM9yb0T4z9liZTduXvdAWYiysY=
-golang.org/x/mod v0.13.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
+golang.org/x/mod v0.14.0 h1:dGoOF9QVLYng8IHTm7BAyWqCqSheQ5pYWGhzW00YJr0=
+golang.org/x/mod v0.14.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=