Add Coverity workflow

.github/workflows/coverity.yml

@@ -0,0 +1,55 @@
+name: Coverity Scan
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 0 01 * *' # On the 1st every month at midnight UTC
+
+
+# Automatically cancel any previous workflow on new push.
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.event_name }}
+  cancel-in-progress: true
+
+jobs:
+  latest:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Determine current repository
+        id: "determine-repo"
+        run: echo "repo=${GITHUB_REPOSITORY}" >> $GITHUB_OUTPUT
+
+      - uses: actions/checkout@v4
+      - name: Download Coverity Build Tool
+        run: |
+          wget -q https://scan.coverity.com/download/cxx/linux64 --post-data "token=$TOKEN&project=capstone-next" -O cov-analysis-linux64.tar.gz
+          mkdir cov-analysis-linux64
+          tar xzf cov-analysis-linux64.tar.gz --strip 1 -C cov-analysis-linux64
+        env:
+          TOKEN: ${{ secrets.COVERITY_TOKEN }}
+
+      - name: Installing build dependencies
+        run: |
+           sudo apt-get --assume-yes install cmake
+
+      - name: Setup
+        run: |
+          cmake . -B build -DCAPSTONE_BUILD_CSTEST=ON
+
+      - name: Build with cov-build
+        run: |
+          export PATH=`pwd`/cov-analysis-linux64/bin:$PATH
+          cov-build --dir cov-int cmake --build build
+
+      - name: Submit the result to Coverity Scan
+        run: |
+          tar czvf capstone-next.tgz cov-int
+          curl \
+            --form token=$TOKEN \
+            --form [email protected] \
+            --form [email protected] \
+            --form version=trunk \
+            --form description="capstone-next" \
+            https://scan.coverity.com/builds?project=capstone-next
+        env:
+          TOKEN: ${{ secrets.COVERITY_TOKEN }}
+        if: steps.determine-repo.outputs.repo == 'capstone-engine/capstone'