Automatic merge from submit-queue (batch tested with PRs 48224, 45431, 45946, 48775, 49396)

Enhance scheduler cache unit tests to cover OIR in pod spec

/kind test

**What this PR does / why we need it**:
More code coverage. This PR covers the scenario when pod requests opaque-integer-resources and unit test the logic in scheduler which deals with parsing oirs in the pod object and stores the same in node info.
Signed-off-by: vikaschoudhary16 <choudharyvikas16@gmail.com>