Bump golang.org/x/mod from 0.33.0 to 0.34.0 in /hack/update-go-mod

Bumps [golang.org/x/mod](https://github.com/golang/mod) from 0.33.0 to 0.34.0.
- [Commits](golang/mod@v0.33.0...v0.34.0)

---
updated-dependencies:
- dependency-name: golang.org/x/mod
  dependency-version: 0.34.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

hack/update-go-mod/go.mod

@@ -2,4 +2,4 @@ module go.pinniped.dev/update-go-mod
 
 go 1.25.0
 
-require golang.org/x/mod v0.33.0
+require golang.org/x/mod v0.34.0

hack/update-go-mod/go.sum

@@ -1,2 +1,2 @@
-golang.org/x/mod v0.33.0 h1:tHFzIWbBifEmbwtGz65eaWyGiGZatSrT9prnU8DbVL8=
-golang.org/x/mod v0.33.0/go.mod h1:swjeQEj+6r7fODbD2cqrnje9PnziFuw4bmLbBZFrQ5w=
+golang.org/x/mod v0.34.0 h1:xIHgNUUnW6sYkcM5Jleh05DvLOtwc6RitGHbDk4akRI=
+golang.org/x/mod v0.34.0/go.mod h1:ykgH52iCZe79kzLLMhyCUzhMci+nQj+0XkbXpNYtVjY=