Cleanup workflows and pin action versions (#118)

This change does some cleanup of the actions workflows to makes them
faster to run and easier to debug. It pins all of the actions workflows
to specific commit hashes. Dependabot will be enabled in a separate PR
to manage updates.

Signed-off-by: Philip Laine <philip.laine@gmail.com>

.github/workflows/e2e.yaml

@@ -0,0 +1,25 @@
+name: e2e
+on:
+  pull_request:
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Clone the code
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd #v6.0.2
+      - name: Setup Go
+        uses: actions/setup-go@4b73464bb391d4059bd26b0524d20df3927bd417 #v6.3.0
+        with:
+          go-version-file: go.mod
+      - name: Install the latest version of kind
+        run: |
+          curl -Lo ./kind https://kind.sigs.k8s.io/dl/latest/kind-linux-amd64
+          chmod +x ./kind
+          sudo mv ./kind /usr/local/bin/kind
+      - name: Verify kind installation
+        run: kind version
+      - name: Create kind cluster
+        run: kind create cluster
+      - name: Running e2e test
+        run: |
+          make test-e2e