cpp: bump to version 0.6.0 (#41)

* cpp: bump to version 0.6.0

* cpp: bump after merge to main

Author: csegarragonz

.github/workflows/tests.yml

@@ -58,7 +58,7 @@ jobs:
     if: ${{ needs.needs-build.outputs.needs-wasm == 'true' }}
     runs-on: ubuntu-latest
     container:
-      image: faasm.azurecr.io/examples-build:0.5.0_0.4.0
+      image: faasm.azurecr.io/examples-build:0.6.0_0.4.0
       credentials:
         username: ${{ secrets.ACR_SERVICE_PRINCIPAL_ID }}
         password: ${{ secrets.ACR_SERVICE_PRINCIPAL_PASSWORD }}