chore: GitHub actions for translation syntax validation and docs link (#23627)

* chore: Add GA for translation syntax validation

* chore: Documentation link checker

Co-authored-by: Gavin D'souza <gavin18d@gmail.com>

* fix: URL

Co-authored-by: Nabin Hait <nabinhait@gmail.com>

Co-authored-by: Gavin D'souza <gavin18d@gmail.com>
Co-authored-by: Nabin Hait <nabinhait@gmail.com>

.github/workflows/docs-checker.yml

@@ -0,0 +1,24 @@
+name: 'Documentation Required'
+on:
+  pull_request:
+    types: [ opened, synchronize, reopened, edited ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: 'Setup Environment'
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.6
+
+      - name: 'Clone repo'
+        uses: actions/checkout@v2
+
+      - name: Validate Docs
+        env:
+          PR_NUMBER: ${{ github.event.number }}
+        run: |
+          pip install requests --quiet
+          python $GITHUB_WORKSPACE/.github/helper/documentation.py $PR_NUMBER

.github/workflows/translation_linter.yml

@@ -0,0 +1,22 @@
+name: Frappe Linter
+on:
+  pull_request:
+    branches:
+      - develop
+      - version-12-hotfix
+      - version-11-hotfix
+jobs:
+  check_translation:
+    name: Translation Syntax Check
+    runs-on: ubuntu-18.04
+    steps:
+    - uses: actions/checkout@v2
+    - name: Setup python3
+      uses: actions/setup-python@v1
+      with:
+        python-version: 3.6
+    - name: Validating Translation Syntax
+      run: |
+        git fetch origin $GITHUB_BASE_REF:$GITHUB_BASE_REF -q
+        files=$(git diff --name-only --diff-filter=d $GITHUB_BASE_REF)
+        python $GITHUB_WORKSPACE/.github/helper/translation.py $files