Adding new alert failure patterns

[amd-anclark]

Proposed changes

• Two new failure patterns have been added to the list: GPU not found and Redis connection time out patterns.
• The logic for sending notifications was recently moved which introduced a bug. I moved failurePatterns variable to live in the failure notifications function scope so that it can access the list of failure patterns.

Checklist

Please put an x into the boxes that apply. You can also fill these out after creating the PR. If you're not sure, please don't hesitate to ask.

• I have added tests relevant to the introduced functionality, and the unit tests are passing locally
• I have added the test to REGRESSION_TESTS list defined at the top of CMakeLists.txt in tests/CMakeLists.txt, IF the test takes more than 30 seconds to run.
• I have added inline documentation which enables the maintainers with understanding the motivation
• I have removed the stale documentation which is no longer relevant after this pull request
• (If this change is user-facing) I have added release notes which provide the end users with a brief summary of the improvement from this pull request
• I have run clang-format on all changed files
• Any dependent changes have been merged

How was this tested

The new failure was tested by forcing a stage failure and echoing the error message. The pattern was discovered and the message was sent to the Teams channel.

[AviralGoelAMD]

LGTM!