Update cortex_m_virtual_hardware.yml

* Replace AWS IAM User credentials with OIDC IAM Role. 
* Use avhclient v0.1.x instead pinned v.0.1.1

BUG=collaboration between TFLM and ARM.

.github/workflows/cortex_m_virtual_hardware.yml

@@ -16,8 +16,6 @@ on:
 
 
 env:
-    AWS_ACCESS_KEY_ID:     ${{ secrets.ARM_AWS_ACCESS_KEY_ID }}
-    AWS_SECRET_ACCESS_KEY: ${{ secrets.ARM_AWS_ACCESS_KEY_SECRET }}
     AWS_DEFAULT_REGION:    ${{ secrets.ARM_AWS_DEFAULT_REGION }}
     AWS_S3_BUCKET_NAME:    ${{ secrets.ARM_AWS_S3_BUCKET_NAME }}
     AWS_IAM_PROFILE:       ${{ secrets.ARM_AWS_IAM_PROFILE }}
@@ -27,6 +25,9 @@ env:
 jobs:
   cortex_m_generic:
     runs-on: ubuntu-latest
+    permissions:
+      id-token: write
+      contents: read
     if: |
       github.event_name == 'workflow_dispatch' ||
       (github.event_name == 'schedule' && github.repository == 'tensorflow/tflite-micro')
@@ -39,7 +40,12 @@ jobs:
           python-version: '3.10'
       - name: Install AVH Client for Python
         run: |
-          pip install git+https://github.com/ARM-software/avhclient.git@v0.1.1
+          pip install git+https://github.com/ARM-software/avhclient.git@v0.1
+      - name: Configure AWS Credentials
+        uses: aws-actions/configure-aws-credentials@v1
+        with:
+          role-to-assume: arn:aws:iam::720528183931:role/Proj-vht-assume-role
+          aws-region: eu-west-1
       - name: Execute test suite on Arm Virtual Hardware at AWS
         run: |
           avhclient -b aws execute --specfile ./tensorflow/lite/micro/tools/github/arm_virtual_hardware/cortex_m_generic_avh.yml