Add PyInstaller Build Pipeline with Github Actions

.github/workflows/main.yml

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+name: Build cvm-attestation with PyInstaller
+run-name: Build cvm-attestation with PyInstaller 🚀
+on: [push]
+jobs:
+  Build-On-Windows:
+    runs-on: windows-2022
+    steps:
+      - name: Check out repository code
+        uses: actions/checkout@v4
+      - name: Build
+        shell: pwsh
+        run: |
+          cd ${{ github.workspace }}\cvm-attestation
+          .\install.ps1
+          pip install pyinstaller
+          pyinstaller .\attest.py
+          cp ${{ github.workspace }}\cvm-attestation\*.json ${{ github.workspace }}\cvm-attestation\dist\attest\
+      - uses: actions/upload-artifact@v4
+        with:
+          name: attest-win
+          path: ${{ github.workspace }}\cvm-attestation\dist\attest\*
+
+  Build-On-Linux:
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Check out repository code
+        uses: actions/checkout@v4
+      - name: Build
+        shell: bash
+        run: |
+          cd ${{ github.workspace }}/cvm-attestation
+          ./install.sh
+          sudo pip install pyinstaller
+          sudo pyinstaller ./attest.py
+          sudo cp ${{ github.workspace }}/cvm-attestation/*.json ${{ github.workspace }}/cvm-attestation/dist/attest/
+      - uses: actions/upload-artifact@v4
+        with:
+          name: attest-lin
+          path: ${{ github.workspace }}/cvm-attestation/dist/attest/*