Bump actions/setup-go from 6.3.0 to 6.4.0 (#246)

Bumps [actions/setup-go](https://github.com/actions/setup-go) from 6.3.0 to 6.4.0.
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](actions/setup-go@4b73464...4a36011)

---
updated-dependencies:
- dependency-name: actions/setup-go
  dependency-version: 6.4.0
  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>

Author: dependabot[bot]

.github/workflows/pr-workflow.yaml

@@ -16,7 +16,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
-      - uses: actions/setup-go@4b73464bb391d4059bd26b0524d20df3927bd417 # v6.3.0
+      - uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6.4.0
         with:
           go-version: '^1.25'
           cache: false