in src/Cli/AzureCliLogin.ts [104:108]
async loginWithSecret(args: string[]) {
core.info("Note: Azure/login action also supports OIDC login mechanism. Refer https://github.com/azure/login#configure-a-service-principal-with-a-federated-credential-to-use-oidc-based-authentication for more details.")
args.push(`--password=${this.loginConfig.servicePrincipalSecret}`);
await this.callCliLogin(args, 'service principal with secret');
}