Prepare for branch renaming. (#367)

* Add `amd-staging` and `amd-mainline` to workflow
* Update links in documentation to use amd-mainline

---------

Signed-off-by: David Galiffi <David.Galiffi@amd.com>

[ROCm/rocprofiler-systems commit: 6c28e49d11]

projects/rocprofiler-systems/.github/workflows/redhat.yml

@@ -3,7 +3,7 @@ run-name: redhat
 
 on:
   push:
-    branches: [ main, develop, release/** ]
+    branches: [ main, develop, amd-mainline, amd-staging, release/** ]
     paths-ignore:
       - '*.md'
       - 'docs/**'
@@ -15,7 +15,7 @@ on:
       - '.github/workflows/formatting.yml'
       - 'docker/**'
   pull_request:
-    branches: [ main, develop, release/** ]
+    branches: [ main, develop, amd-mainline, amd-staging, release/** ]
     paths-ignore:
       - '*.md'
       - 'docs/**'