Update a few workflow triggers and 2.x references

[MarkAckert]

After reviewing some of our workflows, I found places where triggers weren't updated for the 3.x line. This PR fixes that.

This should be merged in after #3775 .

[github-actions]

build 4900 SUCCEEDED.
Link to workflow run: https://github.com/zowe/zowe-install-packaging/actions/runs/8458290745

[github-actions]

Test workflow 4226 is started.
Running install test: Convenience Pax
The zowe artifact being used by this test workflow: libs-snapshot-local/org/zowe/3.0.0-PR-3776/zowe-3.0.0-pr-3776-4900-20240327204107.pax
Running on machine: zzow08
Result: FAILURE
Link to workflow run: https://github.com/zowe/zowe-install-packaging/actions/runs/8458370471

[github-actions]

build 4941 SUCCEEDED.
Link to workflow run: https://github.com/zowe/zowe-install-packaging/actions/runs/8526522826

[github-actions]

Test workflow 4251 is started.
Running install test: Convenience Pax
The zowe artifact being used by this test workflow: libs-snapshot-local/org/zowe/3.0.0-PR-3776/zowe-3.0.0-pr-3776-4941-20240402170101.pax
Running on machine: zzow07
Result: SUCCESS
Link to workflow run: https://github.com/zowe/zowe-install-packaging/actions/runs/8526633126

[github-actions]

build 5074 SUCCEEDED.
Link to workflow run: https://github.com/zowe/zowe-install-packaging/actions/runs/8725026932

[github-actions]

Test workflow 4328 is started.
Running install test: Convenience Pax
The zowe artifact being used by this test workflow: libs-snapshot-local/org/zowe/3.0.0-PR-3776/zowe-3.0.0-pr-3776-5074-20240417160711.pax
Running on machine: zzow06
Result: SUCCESS
Link to workflow run: https://github.com/zowe/zowe-install-packaging/actions/runs/8725167651

[github-actions]

build 5104 SUCCEEDED.
Link to workflow run: https://github.com/zowe/zowe-install-packaging/actions/runs/8755813867

[github-actions]

Test workflow 4348 is started.
Running install test: Convenience Pax
The zowe artifact being used by this test workflow: libs-snapshot-local/org/zowe/3.0.0-PR-3776/zowe-3.0.0-pr-3776-5104-20240419152058.pax
Running on machine: zzow07
Result: SUCCESS
Link to workflow run: https://github.com/zowe/zowe-install-packaging/actions/runs/8755925000

[github-actions]

build 5433 SUCCEEDED.
Link to workflow run: https://github.com/zowe/zowe-install-packaging/actions/runs/9504942405

[github-actions]

Test workflow 4749 is started.
Running install test: Convenience Pax
The zowe artifact being used by this test workflow: libs-snapshot-local/org/zowe/3.0.0-PR-3776/zowe-3.0.0-pr-3776-5433-20240613183918.pax
Running on machine: zzow06
Result: SUCCESS
Link to workflow run: https://github.com/zowe/zowe-install-packaging/actions/runs/9505040103