Test caching for tools

.github/workflows/automation.yml

@@ -12,22 +12,36 @@ on:
 jobs:
   build-tools:
     runs-on: ubuntu-latest
+    env: 
+      GO_VERSION: '1.21.4'
+      MMDBMELD_TAG: 'v0.1.1'
     steps:
+    - name: Check for Cached Tools Build
+      uses: actions/cache@v3
+      id: tools-cache
+      with:
+        path: ./tools
+        key: $GO_VERSION + $MMDBMELD_TAG
+
     - name: Set up Go
       uses: actions/setup-go@v4
+      if: steps.tools-cache.outputs.cache-hit != 'true'
       with:
         go-version: '1.21.4'
 
     - name: Clone mmdbmeld
+      if: steps.tools-cache.outputs.cache-hit != 'true'
       run: git clone -b v0.1.1 https://github.com/safing/mmdbmeld.git
 
     - name: Build mmdbmeld
+      if: steps.tools-cache.outputs.cache-hit != 'true'
       working-directory: ./mmdbmeld
       run: |
         go build -C cmd/mmdbmeld
         go build -C cmd/mmdbcheck
   
     - name: Move the Tools
+      if: steps.tools-cache.outputs.cache-hit != 'true'
       run: |
         mkdir ./tools
         cp ./mmdbmeld/cmd/mmdbmeld/mmdbmeld ./mmdbmeld/cmd/mmdbcheck/mmdbcheck ./tools