updating workflows - lts

[ATorrise]

Action	Description
#6	update all workflows to remove deprecation warnings, octorelease updates
#7	remove Node 14 from workflow matrix

[codecov[bot]]

Codecov Report

Patch and project coverage have no change.

Comparison is base (8e94e3a) 76.14% compared to head (7201e26) 76.14%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## zowe-v1-lts #124 +/- ## ============================================ Coverage 76.14% 76.14% ============================================ Files 25 25 Lines 327 327 Branches 41 41 ============================================ Hits 249 249 Misses 78 78 ```

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[sonarcloud[bot]]

Kudos, SonarCloud Quality Gate passed!   

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