chore: clean up GitHub Actions

.github/workflows/CODEOWNERS

+/terraform/   @rawkode @gitirabassi

.github/workflows/release.yaml → .github/workflows/cr-master.yaml

-name: Release Master
+name: Release Helm Charts
 
 on:
   push:

.github/workflows/pull-request.yaml → .github/workflows/cr-pull-request.yaml

-name: Pull Request Checks
+name: Test Helm Charts
 
 on: pull_request
 

.github/workflows/terraform-master.yaml

+name: Terraform Apply
+
+on:
+  push:
+    paths:
+      - ".github/workflows/terraform.yaml"
+      - "terraform/**"
+    branches:
+      - master
+
+jobs:
+  terraform:
+    name: "Terraform Apply"
+    runs-on: ubuntu-latest
+    steps:
+      - name: "Checkout"
+        uses: actions/checkout@master
+
+      - name: "Terraform Format"
+        uses: hashicorp/terraform-github-actions@master
+        with:
+          tf_actions_version: 0.12.20
+          tf_actions_subcommand: "fmt"
+          tf_actions_working_dir: "terraform"
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: "Terraform Init"
+        uses: hashicorp/terraform-github-actions@master
+        with:
+          tf_actions_version: 0.12.20
+          tf_actions_subcommand: "init"
+          tf_actions_working_dir: "terraform"
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GOOGLE_CREDENTIALS: ${{ secrets.GOOGLE_CREDENTIALS }}
+
+      - name: "Terraform Validate"
+        uses: hashicorp/terraform-github-actions@master
+        with:
+          tf_actions_version: 0.12.20
+          tf_actions_subcommand: "validate"
+          tf_actions_working_dir: "terraform"
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: "Terraform Apply"
+        uses: hashicorp/terraform-github-actions@master
+        with:
+          tf_actions_version: 0.12.20
+          tf_actions_subcommand: "apply"
+          tf_actions_working_dir: "terraform"
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GOOGLE_CREDENTIALS: ${{ secrets.GOOGLE_CREDENTIALS }}

.github/workflows/terraform.yaml → .github/workflows/terraform-pull-request.yaml

-name: Repository Configuration with Terraform
+name: Terraform Plan
 
 on:
-  push:
+  pull_request:
+    branches:
+      - master
     paths:
       - ".github/workflows/terraform.yaml"
       - "terraform/**"
 
 jobs:
   terraform:
-    name: "Terraform"
+    name: "Terraform Plan"
     runs-on: ubuntu-latest
     steps:
       - name: "Checkout"

terraform/CODEOWNERS

-*   @rawkode @gitirabassi