step to install gcc11

Author: nikhilsinhaparseable

.github/workflows/build.yaml

@@ -34,6 +34,16 @@ jobs:
         uses: dtolnay/rust-toolchain@stable
         with:
           targets: ${{ matrix.target }}
+        - name: Install GCC 11 on Linux
+          if: runner.os == 'Linux'
+          run: |
+            sudo apt-get update
+            sudo apt-get install -y gcc-11 g++-11
+        - name: Set CC and CXX to gcc-11
+          if: runner.os == 'Linux'
+          run: |
+            echo "CC=gcc-11" >> $GITHUB_ENV
+            echo "CXX=g++-11" >> $GITHUB_ENV
       - name: Cache dependencies
         uses: actions/cache@v4
         with:
@@ -91,6 +101,16 @@ jobs:
               libssl-dev:arm64 \
               pkg-config-aarch64-linux-gnu
           fi
+        - name: Install GCC 11 on Linux
+          if: runner.os == 'Linux'
+          run: |
+            sudo apt-get update
+            sudo apt-get install -y gcc-11 g++-11
+        - name: Set CC and CXX to gcc-11
+          if: runner.os == 'Linux'
+          run: |
+            echo "CC=gcc-11" >> $GITHUB_ENV
+            echo "CXX=g++-11" >> $GITHUB_ENV
       # macOS-specific dependencies
       - name: Install macOS dependencies
         if: runner.os == 'macOS'