chore(ci): Remove Fluid Attacks SAST scan from GitHub Actions

The Fluid Attacks Docker container has been taken down, causing the scan
to always fail. Removing the fluidAttacksScan job and its configuration
file to prevent CI failures.

Changes:
- Remove fluidAttacksScan job from .github/workflows/test.yml
- Remove fascan.yml configuration file

Author: andris9

.github/workflows/test.yml

@@ -26,38 +26,6 @@ jobs:
               run: |
                   npm run licenses
 
-    fluidAttacksScan:
-        name: Fluid Attacks SAST Scan
-        runs-on: ubuntu-latest
-
-        permissions:
-            # Give the default GITHUB_TOKEN write permission to commit and push the
-            # added or changed files to the repository.
-            contents: write
-
-        steps:
-            - name: Checkout repository
-              uses: actions/checkout@v4
-              with:
-                  ref: ${{ github.head_ref }}
-
-            # Ensure that Node.js is available
-            - name: Use Node.js 20
-              uses: actions/setup-node@v4
-              with:
-                  node-version: 20
-
-            - name: Fluid-Attacks scan
-              continue-on-error: true
-              uses: docker://docker.io/fluidattacks/cli:latest
-              with:
-                  args: skims scan /github/workspace/fascan.yml
-
-            - name: Show Scan Results
-              run: |
-                  cat Fluid-Attacks-Results.csv
-                  node -e 'require("fs").readFileSync("Fluid-Attacks-Results.csv","utf-8").indexOf("No vulnerabilities were found in your targets")<0 && process.exit(1)'
-
     test:
         name: Test Suite
         timeout-minutes: 15  # Increased timeout for Gmail API tests