add a new workflow to experiment with building in a container

Author: duncanpo

.github/workflows/container_build.yml

@@ -0,0 +1,39 @@
+name: "Experiment with building in a Linux container"
+on:
+    push:
+      tags:
+        - '[0-9]+.[0-9]+.[0-9]+'
+jobs:
+    build-ubuntu:
+        runs-on: ubuntu-22.04
+        container:
+          image: ubuntu:20.04
+        env:
+            OPENTELEMETRY_MATLAB_INSTALL: "${{ github.workspace }}/otel_matlab_install"
+        steps:
+            - name: Download OpenTelemetry-Matlab source
+              uses: actions/checkout@v3
+              with: 
+                path: opentelemetry-matlab
+            - name: Install compiler and cmake
+              run: sudo apt install -y build-essential cmake
+            - name: Install ninja-build
+              run: sudo apt-get install ninja-build
+            - name: Install MATLAB
+              uses: matlab-actions/setup-matlab@v2
+              with:
+                release: R2025a
+                products: MATLAB_Compiler
+            - name: Build OpenTelemetry-Matlab
+              working-directory: opentelemetry-matlab
+              run: |
+                  cmake -S . -B build -G Ninja -DCMAKE_BUILD_TYPE=Release -DWITH_OTLP_GRPC=ON -DWITH_OTLP_FILE=ON -DOTEL_MATLAB_VERSION=${{ github.ref_name }} -DCMAKE_INSTALL_PREFIX=${{ env.OPENTELEMETRY_MATLAB_INSTALL }}
+                  cmake --build build --config Release --target install
+            - name: Compress into single artifact
+              working-directory: ${{ github.workspace }}
+              run: tar -czf otel-matlab-ubuntu.tar.gz otel_matlab_install
+            - name: Upload artifacts
+              uses: actions/upload-artifact@v4
+              with: 
+                name: otel-matlab-ubuntu.tar.gz
+                path: ${{ github.workspace }}/otel-matlab-ubuntu.tar.gz