chore(deps): update actions/cache action to v5 (#4)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/main.yml

@@ -30,7 +30,7 @@ jobs:
 
       - name: Cache Go tools
         id: go-tools-cache
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ~/go/bin
           key: ${{ runner.os }}-go-tools-${{ hashFiles('.mise.toml') }}

.github/workflows/pr-checks.yml

@@ -30,7 +30,7 @@ jobs:
 
       - name: Cache Go tools
         id: go-tools-cache
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ~/go/bin
           key: ${{ runner.os }}-go-tools-${{ hashFiles('.mise.toml') }}