diff --git a/.github/actions/acc_test/action.yaml b/.github/actions/acc_test/action.yaml
index de07ff65..30617e15 100644
--- a/.github/actions/acc_test/action.yaml
+++ b/.github/actions/acc_test/action.yaml
@@ -83,14 +83,31 @@ runs:
         check-latest: true
         go-version-file: 'go.mod'
 
+    - name: Determine GOMODCACHE
+      shell: bash
+      id: goenv
+      run: |
+        set -e
+        echo "gomodcache=$(go env GOMODCACHE)" >> "$GITHUB_OUTPUT"
+
+    - name: Restore cached GO pkg
+      id: cache-gopkg
+      uses: actions/cache/restore@v5
+      with:
+        path: "${{ steps.goenv.outputs.gomodcache }}"
+        key: ${{ runner.os }}-gopkg
+
     - name: Install go tools
+      if: steps.cache-gopkg.outputs.cache-hit != 'true'
       shell: bash
       run: |
         set -e
         go mod download
         go install golang.org/x/tools/cmd/goimports@latest
-        go install github.com/golangci/golangci-lint/v2/cmd/golangci-lint@v2.7.2
-        go install github.com/hashicorp/terraform-plugin-docs/cmd/tfplugindocs@v0.24.0
+        go install github.com/hashicorp/terraform-plugin-codegen-framework/cmd/tfplugingen-framework@latest
+        go install github.com/hashicorp/terraform-plugin-codegen-openapi/cmd/tfplugingen-openapi@latest
+        go install github.com/hashicorp/terraform-plugin-docs/cmd/tfplugindocs@latest
+        go install github.com/golangci/golangci-lint/v2/cmd/golangci-lint@latest
 
 #    - name: Prepare pkg_gen directory
 #      shell: bash
@@ -101,15 +118,25 @@ runs:
       shell: bash
       run: go mod tidy
 
+    - name: Save GO package Cache
+      id: cache-gopkg-save
+      uses: actions/cache/save@v5
+      with:
+        path: |
+          ${{ steps.goenv.outputs.gomodcache }}
+        key: ${{ runner.os }}-gopkg
+
     - name: Ensure service account file exists
       shell: bash
       run: |
         set -e
           if [[ ! -f "${{ inputs.service_account_json_file_path }}" ]]; then
-            if [[ -z "${{ inputs.service_account_json_file_content }}" ]]; then
-              echo "unable to find service account file '${{ inputs.service_account_json_file_path }}' \n and service_account_json_file_content is empty"
+            echo "unable to find service account file '${{ inputs.service_account_json_file_path }}'"
+            if [ -z "${{ inputs.service_account_json_file_content }}" ]; then
+              echo "ERROR: service_account_json_file_content MUST NOT be empty if account file is missing"
               exit 1
             fi
+            echo "creating service account file '${{ inputs.service_account_json_file_path }}'"
             echo "${{ inputs.service_account_json_file_content }}" > "${{ inputs.service_account_json_file_path }}"
           fi
         cat "${{ inputs.service_account_json_file_path }}"