Add custom workflow to build custom version

.github/workflows/MainDistributionPipeline.yml

@@ -16,19 +16,19 @@ jobs:
     name: Build extension binaries
     uses: duckdb/extension-ci-tools/.github/workflows/[email protected]
     with:
-      duckdb_version: v1.3.2
+      duckdb_version: 3de8d76ba8
       ci_tools_version: v1.3.2
       extension_name: postgres_scanner
-      exclude_archs: 'wasm_mvp;wasm_eh;wasm_threads;windows_amd64_mingw'
+      exclude_archs: 'wasm_mvp;wasm_eh;wasm_threads;windows_amd64_mingw;linux_amd64;osx_arm64;linux_amd64_musl;osx_amd64;windows_amd64'
 
   duckdb-stable-deploy:
     name: Deploy extension binaries
     needs: duckdb-stable-build
     uses: duckdb/extension-ci-tools/.github/workflows/[email protected]
     secrets: inherit
     with:
-      duckdb_version: v1.3.2
+      duckdb_version: 3de8d76ba8
       ci_tools_version: v1.3.2
       extension_name: postgres_scanner
-      exclude_archs: 'wasm_mvp;wasm_eh;wasm_threads;windows_amd64_mingw'
+      exclude_archs: 'wasm_mvp;wasm_eh;wasm_threads;windows_amd64_mingw;linux_amd64;osx_arm64;linux_amd64_musl;osx_amd64;windows_amd64'
       deploy_latest: ${{ startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main' }}

.github/workflows/internal-build.yml

@@ -0,0 +1,21 @@
+name: Internal Build
+on:
+  pull_request:
+  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.head_ref || '' }}-${{ github.base_ref || '' }}-${{ github.ref != 'refs/heads/main' || github.sha }}
+  cancel-in-progress: true
+
+jobs:
+  duckdb-internal-build:
+    name: Build extension binaries
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Set up DuckDB
+        run: |
+          git submodule init
+          git pull --recurse-submodules
+          make