add support for zigbuild and build linux with glibc 2.31

Author: atomicptr

.github/workflows/release.yml

@@ -17,6 +17,7 @@ jobs:
         config:
           - name: Linux x86
             os: ubuntu-latest
+            target: x86_64-unknown-linux-gnu.2.31
             artifact:
               sidecar: target/release/libdefold_nvim_sidecar.so
               bridge: target/release/defold-nvim-bridge
@@ -25,6 +26,7 @@ jobs:
               bridge: target/release/linux-x86-defold-nvim-bridge
           - name: MacOS x86
             os: macos-15-intel
+            target: x86_64-apple-darwin
             artifact:
               sidecar: target/release/libdefold_nvim_sidecar.dylib
               bridge: target/release/defold-nvim-bridge
@@ -33,6 +35,7 @@ jobs:
               bridge: target/release/macos-x86-defold-nvim-bridge
           - name: MacOS ARM
             os: macos-latest
+            target: aarch64-apple-darwin
             artifact:
               sidecar: target/release/libdefold_nvim_sidecar.dylib
               bridge: target/release/defold-nvim-bridge
@@ -41,6 +44,7 @@ jobs:
               bridge: target/release/macos-arm-defold-nvim-bridge
           - name: Windows x86
             os: windows-latest
+            target: x86_64-pc-windows-gnu
             artifact:
               sidecar: target/release/defold_nvim_sidecar.dll
               bridge: target/release/defold-nvim-bridge.exe
@@ -55,7 +59,9 @@ jobs:
           rustflags: ""
 
       - name: build ${{ matrix.config.name }}
-        run: cargo build --release
+        run: |
+          cargo install cargo-zigbuild
+          cargo zigbuild --release --target ${{ matrix.config.target }}
 
       - name: prepare ${{ matrix.config.name }}
         run: |