fix: Fix test/build workflow. It doesn't do integration tests now

Author: if-loop69420

.github/workflows/build_test.yaml

@@ -9,13 +9,43 @@ env:
 
 jobs:
   build_and_test:
-    name: Rust project - latest
+    name: etcd_fdw Build and Test
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - run: rustup update stable && rustup default stable
-      - run: cargo install cargo-pgrx --version 0.16.0
-      - run: cargo build --verbose
-      - run: cargo pgrx test --verbose
+
+      - name: Cache build/deps
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/bin/
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+            target/
+          key: cargo-${{ hashFiles('**/Cargo.lock') }}
+
+      - name: Cache pgrx
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.pgrx/
+          key: pgrx-0.16.0
+
+      - name: Install latest stable toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          override: true
+          components: rustfmt, clippy
+      - run: apt update
+      - run: apt install build-essential bison flex clang protobuf-compiler -y
+      - name: Create user
+        run: |
+          useradd -m test_user
+      - run: sudo -u test_user cargo install cargo-pgrx --version 0.16.0
+      - run: sudo -u test_user cargo pgrx init
+      - run: sudo -u test_user cargo build --verbose
+      - run: sudo -u test_user cargo test --verbose