ci: Add Ruff linter as GitHub Action.

Executes Ruff as linter tool to check code pattern.

Signed-off-by: Paulo Vital <paulo.vital@ibm.com>
Signed-off-by: Cagri Yonca <cagri@ibm.com>

Author: CagriYonca

.github/workflows/linter.yml

@@ -0,0 +1,13 @@
+name: Ruff
+on: [ push, pull_request ]
+jobs:
+  ruff:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: astral-sh/ruff-action@v3
+        with:
+            src: >-
+                ./src
+                ./tests
+                ./tests_aws

.github/workflows/release-notification-on-slack.yml

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+name: Slack Post
+on:
+  workflow_dispatch: # Manual trigger
+    inputs:
+      github_ref:
+        description: 'Manually provided value for GITHUB_RELEASE_TAG of a release'
+        required: true
+        type: string
+
+  # https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#release
+  release:
+    types: [published]
+jobs:
+  build:
+    name: Slack Post
+    runs-on: ubuntu-latest
+    steps:
+      - name: 'Checkout the needed file only ./bin/announce_release_on_slack.py'
+        uses: actions/checkout@v4
+      - run: |
+          if [[ ${{ github.event_name == 'workflow_dispatch' }} == true ]]; then
+            export GITHUB_RELEASE_TAG=${{ inputs.github_ref }}
+          else # release event
+            export GITHUB_RELEASE_TAG=$(basename ${GITHUB_REF})
+          fi
+          echo "New release published ${GITHUB_RELEASE_TAG}"
+          pip3 install PyGithub
+          echo $PWD
+          ls -lah
+          ./bin/announce_release_on_slack.py
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          SLACK_BOT_TOKEN: ${{ secrets.SLACK_BOT_TOKEN }}
+          SLACK_CHANNEL_ID_RELEASES: ${{ secrets.SLACK_CHANNEL_ID_RELEASES }}

.github/workflows/sonarqube.yml

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+name: Build
+on:
+  push:
+    branches:
+      - main # or the name of your main branch
+  pull_request:
+    types: [opened, synchronize, reopened]
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      
+      - uses: sonarsource/sonarqube-scan-action@v6
+        env:
+          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
+          SONAR_HOST_URL: ${{ secrets.SONAR_HOST_URL }}
+          SONAR_SCANNER_OPTS: "-Dsonar.scanner.skipJreProvisioning=true"
+        with:
+          args: >
+            -Dsonar.scanner.verifySSL=false
+      # If you wish to fail your job when the Quality Gate is red, uncomment the
+      # following lines. This would typically be used to fail a deployment.
+      # We do not recommend to use this in a pull request. Prefer using pull request
+      # decoration instead.
+      # - uses: sonarsource/sonarqube-quality-gate-action@master
+      #   timeout-minutes: 5
+      #   env:
+      #     SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}