replace shortened URL with full URL (#905)

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

Author: tim-finnigan

dist/index.js

@@ -59,7 +59,7 @@ async function assumeRoleWithCredentials(params: AssumeRoleCommandInput, client:
   if (!process.env['AWS_SESSION_TOKEN']) {
     core.warning(
       'To avoid using long-term AWS credentials, please update your workflows to authenticate using OpenID Connect.' +
-        ' See https://s12d.com/gha-oidc-aws for more information.'
+        ' See https://docs.github.com/en/actions/deployment/security-hardening-your-deployments/configuring-openid-connect-in-amazon-web-services for more information.'
     );
   }
   try {

src/assumeRole.ts

@@ -879,7 +879,7 @@ describe('Configure AWS Credentials', () => {
 
     expect(core.warning).toHaveBeenCalledWith(
       'To avoid using long-term AWS credentials, please update your workflows to authenticate using OpenID Connect.' +
-        ' See https://s12d.com/gha-oidc-aws for more information.'
+        ' See https://docs.github.com/en/actions/deployment/security-hardening-your-deployments/configuring-openid-connect-in-amazon-web-services for more information.'
     );
   });