chore: bump github.com/Azure/azure-sdk-for-go/sdk/azcore from 1.9.2 to 1.12.0 in /examples/msal-go in the all group

chore: bump github.com/Azure/azure-sdk-for-go/sdk/azcore from 1.9.2 to 1.12.0 in /examples/msal-go in the all group #700