Added Raspberry support for Github Action (#486)

* add rapsberry pi ci

* add credential for ci container

* add id-token permission

* setup a test build version

* setup a test build version

* update build version

Author: xiazhvera

.github/workflows/ci.yml

@@ -7,7 +7,7 @@ on:
       - 'docs'
 
 env:
-  BUILDER_VERSION: v0.9.20
+  BUILDER_VERSION: v0.9.21
   BUILDER_SOURCE: releases
   BUILDER_HOST: https://d19elf31gohf1l.cloudfront.net
   PACKAGE_NAME: aws-iot-device-sdk-cpp-v2
@@ -61,6 +61,31 @@ jobs:
           aws s3 cp s3://aws-crt-test-stuff/ci/${{ env.BUILDER_VERSION }}/linux-container-ci.sh ./linux-container-ci.sh && chmod a+x ./linux-container-ci.sh
           ./linux-container-ci.sh ${{ env.BUILDER_VERSION }} aws-crt-${{ matrix.image }} build -p ${{ env.PACKAGE_NAME }}
 
+
+  raspberry:
+    runs-on: ubuntu-20.04 # latest
+    strategy:
+      fail-fast: false
+      matrix:
+        image:
+          - raspbian-bullseye
+    permissions:
+      id-token: write # This is required for requesting the JWT
+    steps:
+      - name: configure AWS credentials (containers)
+        uses: aws-actions/configure-aws-credentials@v1
+        with:
+          role-to-assume: ${{ env.CI_IOT_CONTAINERS }}
+          aws-region: ${{ env.AWS_DEFAULT_REGION }}
+      # set arm arch
+      - name: Install qemu/docker
+        run: docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
+      - name: Build ${{ env.PACKAGE_NAME }}
+        run: |
+          aws s3 cp s3://aws-crt-test-stuff/ci/${{ env.BUILDER_VERSION }}/linux-container-ci.sh ./linux-container-ci.sh && chmod a+x ./linux-container-ci.sh
+          ./linux-container-ci.sh ${{ env.BUILDER_VERSION }} aws-crt-${{ matrix.image }} build -p ${{ env.PACKAGE_NAME }}
+ 
+
   linux-compiler-compat:
     runs-on: ubuntu-latest
     strategy: