GitHub: disable cache, remove hosted tools cache

In an attempt to fix the "out of disk space" build error during release
builds, we first disable using Golang caches (which can be quite large)
and then remove a bunch of pre-installed tools and their caches to
provide some additional disk storage.

.github/workflows/release.yaml

@@ -28,6 +28,10 @@ jobs:
         uses: actions/setup-go@v5
         with:
           go-version: '${{ env.GO_VERSION }}'
+          cache: 'false'
+
+      - name: cleanup space
+        run: rm -rf /opt/hostedtoolcache
 
       - name: Set env
         run: echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV