PNLP-7413: add semgrep to github workflow & update dependencies with security patches

.github/workflows/semgrep.yml

@@ -0,0 +1,49 @@
+# Name of this GitHub Actions workflow.
+name: Semgrep
+
+on:
+  # Scan changed files in PRs (diff-aware scanning):
+  pull_request: {}
+  # Scan on-demand through GitHub Actions interface:
+  workflow_dispatch: {}
+  # Scan mainline branches and report all findings:
+  push:
+    branches: ["master", "main"]
+  # Schedule the CI job (this method uses cron syntax):
+  schedule:
+    - cron: '20 17 * * *' # Sets Semgrep to scan every day at 17:20 UTC.
+    # It is recommended to change the schedule to a random time.
+
+permissions:
+  actions: read
+  contents: read
+  security-events: write
+
+jobs:
+  semgrep:
+    # User-definable name of this GitHub Actions job:
+    name: semgrep/ci
+    # If you are self-hosting, change the following `runs-on` value:
+    runs-on: ubuntu-latest
+
+    container:
+      # A Docker image with Semgrep installed. Do not change this.
+      image: returntocorp/semgrep
+
+    # Skip any PR created by dependabot to avoid permission issues:
+    if: (github.actor != 'dependabot[bot]')
+
+    steps:
+      # Fetch project source with GitHub Actions Checkout.
+      - uses: actions/checkout@v3
+      # Run the "semgrep ci" command on the command line of the docker image.
+      - run: semgrep ci --sarif --output=semgrep.sarif --exclude-rule yaml.github-actions.security.third-party-action-not-pinned-to-commit-sha.third-party-action-not-pinned-to-commit-sha
+        env:
+           # Add the rules that Semgrep uses by setting the SEMGREP_RULES environment variable.
+           SEMGREP_RULES: p/default # more at semgrep.dev/explore
+
+      - name: Upload SARIF file for GitHub Advanced Security Dashboard
+        uses: github/codeql-action/upload-sarif@v2
+        with:
+          sarif_file: semgrep.sarif
+        if: always()