chore(deps): bump actions/setup-go from 6.2.0 to 6.4.0

Bumps [actions/setup-go](https://github.com/actions/setup-go) from 6.2.0 to 6.4.0.
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](7a3fe6cf4c...4a3601121d)

---
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>

.github/workflows/cicd.yml

@@ -110,15 +110,6 @@ jobs:
             exit 1
           fi
 
-      - name: Update version in flake.nix
-        shell: bash
-        env:
-          VERSION: ${{ inputs.version }}
-        run: |
-          set -euo pipefail
-          sed -i "s/version = \"[0-9]*\.[0-9]*\.[0-9]*\(-rc\.[0-9]*\)\?\"/version = \"$VERSION\"/" flake.nix
-          echo "Updated flake.nix version to $VERSION"
-
       - name: Create and push tag
         shell: bash
         env:
@@ -136,11 +127,6 @@ jobs:
             echo "Tag $VERSION already exists" >&2
             exit 1
           fi
-          if ! git diff --quiet flake.nix; then
-            git add flake.nix
-            git commit -m "chore(nix): update version to $VERSION"
-            git push origin "$TARGET_BRANCH"
-          fi
           git tag -a "$VERSION" -m "Release $VERSION"
           git push origin "refs/tags/$VERSION"
 
@@ -665,7 +651,7 @@ jobs:
           echo "Checked out $(git rev-parse --short HEAD) for tag ${TAG}"
 
       - name: Install Go
-        uses: actions/setup-go@7a3fe6cf4cb3a834922a1244abfce67bcef6a0c5 # v6.2.0
+        uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6.4.0
         with:
           go-version-file: go.mod
 

.github/workflows/test.yml

@@ -31,7 +31,7 @@ jobs:
         uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
 
       - name: Set up Go
-        uses: actions/setup-go@7a3fe6cf4cb3a834922a1244abfce67bcef6a0c5 # v6.2.0
+        uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6.4.0
         with:
           go-version: 1.25
 

flake.nix

@@ -25,7 +25,7 @@
           inherit (pkgs) lib;
 
           # Update version when releasing
-          version = "1.11.0";
+          version = "1.8.0";
         in
         {
           default = self.packages.${system}.pangolin-newt;