fix: replace GitHub Action with native rustup installation

- Replace actions-rust-lang/setup-rust-toolchain@v1 with curl | sh
- Fix bash compatibility issue with Gitea Runner
- Add 'source /Users/accusys/.cargo/env' for all cargo commands
- This should resolve the 'conditional binary operator expected' error

.gitea/workflows/test.yml

@@ -15,9 +15,9 @@ jobs:
         run: mkdir -p data/users data/cache
       
       - name: Setup Rust
-        uses: actions-rust-lang/setup-rust-toolchain@v1
-        with:
-          toolchain: stable
+        run: |
+          curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable
+          source $HOME/.cargo/env
       
       - name: Cache cargo
         uses: actions/cache@v3
@@ -35,13 +35,19 @@ jobs:
         run: brew install switchaudio-source
       
       - name: Run tests
-        run: cargo test --all
+        run: |
+          source $HOME/.cargo/env
+          cargo test --all
       
       - name: Run clippy
-        run: cargo clippy --all-targets --all-features -- -D warnings
+        run: |
+          source $HOME/.cargo/env
+          cargo clippy --all-targets --all-features -- -D warnings
       
       - name: Check formatting
-        run: cargo fmt -- --check
+        run: |
+          source $HOME/.cargo/env
+          cargo fmt -- --check
       
       - name: Clean test databases
         run: rm -f data/users/test_*.sqlite
@@ -54,9 +60,9 @@ jobs:
         uses: actions/checkout@v3
       
       - name: Setup Rust
-        uses: actions-rust-lang/setup-rust-toolchain@v1
-        with:
-          toolchain: stable
+        run: |
+          curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable
+          source $HOME/.cargo/env
       
       - name: Cache cargo
         uses: actions/cache@v3
@@ -68,7 +74,9 @@ jobs:
           key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
       
       - name: Build release
-        run: cargo build --release
+        run: |
+          source $HOME/.cargo/env
+          cargo build --release
       
       - name: Upload artifact
         uses: actions/upload-artifact@v3