chore: standardize GitHub Actions workflows and fix code issues

- Standardize all shared workflow versions to @1.4.0
- Update setup-python to @v6 in all readme.yml files
- Update actions/checkout to @v4
- Fix file naming: varaibles.tf -> variables.tf
- Fix file naming: output.tf -> outputs.tf (droplet module)
- Remove hardcoded SSH key from ssh-key module
- Add missing workflows to components module
- Fix description error in droplet outputs.tf
- Update Terraform version requirements in ssh-key module

Author: anmolnagpal

.github/workflows/auto_assignee.yml

@@ -6,7 +6,7 @@ on:
   workflow_dispatch:
 jobs:
   assignee:
-    uses: clouddrove/github-shared-workflows/.github/workflows/auto_assignee.yml@1.2.1
+    uses: clouddrove/github-shared-workflows/.github/workflows/auto_assignee.yml@1.4.0
     secrets:
       GITHUB: ${{ secrets.GITHUB }}
     with:

.github/workflows/automerge.yml

@@ -4,7 +4,7 @@ on:
   pull_request:
 jobs:
   auto-merge:
-    uses: clouddrove/github-shared-workflows/.github/workflows/auto_merge.yml@1.2.1
+    uses: clouddrove/github-shared-workflows/.github/workflows/auto_merge.yml@1.4.0
     secrets:
       GITHUB: ${{ secrets.GITHUB }}
     with:

.github/workflows/changelog.yml

@@ -8,7 +8,7 @@ on:
   workflow_dispatch:
 jobs:
   changelog:
-    uses: clouddrove/github-shared-workflows/.github/workflows/changelog.yml@1.2.1
+    uses: clouddrove/github-shared-workflows/.github/workflows/changelog.yml@1.4.0
     secrets: inherit
     with:
       branch: 'master'

.github/workflows/readme.yml

@@ -10,10 +10,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 'Checkout'
-        uses: actions/checkout@master
+        uses: actions/checkout@v4
 
       - name: 'Set up Python 3.7'
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: '3.x'
 

.github/workflows/tf-checks.yml

@@ -6,6 +6,6 @@ on:
   workflow_dispatch:
 jobs:
   tf-static-checks:
-    uses: clouddrove/github-shared-workflows/.github/workflows/tf-checks.yml@1.2.1
+    uses: clouddrove/github-shared-workflows/.github/workflows/tf-checks.yml@1.4.0
     with:
       working_directory: './_examples/complete/'

.github/workflows/tflint.yml

@@ -6,6 +6,6 @@ on:
   workflow_dispatch:
 jobs:
   tf-lint:
-    uses: clouddrove/github-shared-workflows/.github/workflows/tf-lint.yml@1.2.1
+    uses: clouddrove/github-shared-workflows/.github/workflows/tf-lint.yml@1.4.0
     secrets:
       GITHUB: ${{ secrets.GITHUB }}

.github/workflows/tfsec.yml

@@ -5,7 +5,7 @@ on:
   workflow_dispatch:
 jobs:
   tfsec:
-    uses: clouddrove/github-shared-workflows/.github/workflows/tfsec.yml@1.2.1
+    uses: clouddrove/github-shared-workflows/.github/workflows/tfsec.yml@1.4.0
     secrets:
       GITHUB: ${{ secrets.GITHUB }}
     with: