Add ESLint rule for no floating promises

[t1m0thyj]

Proposed changes

Resolves #2291 by adding a customized version of the @typescript-eslint/no-floating-promises rule that allows floating Thenables without a .catch method.

Release Notes

Milestone: 2.8.1

Changelog:

• Added no-floating-promises rule that ignores floating thenables without a .catch method.
• Updated linter rules and addressed linter errors.

Types of changes

What types of changes does your code introduce to Zowe Explorer?
Put an x in the boxes that apply

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Updates to Documentation or Tests (if none of the other choices apply)

Checklist

Put an x in the boxes that apply. You can also fill these out after creating the PR. If you're unsure about any of them, don't hesitate to ask. We're here to help! This checklist will be used as reference for both the contributor and the reviewer

• I have read the CONTRIBUTOR GUIDANCE wiki
• PR title follows Conventional Commits Guidelines
• PR Description is included
• gif or screenshot is included if visual changes are made
• yarn workspace vscode-extension-for-zowe vscode:prepublish has been executed
• All checks have passed (DCO, Jenkins and Code Coverage)
• I have added unit test and it is passing
• I have added integration test and it is passing
• There is coverage for the code that I have added
• I have tested it manually and there are no regressions found
• I have added necessary documentation (if appropriate)
• Any PR dependencies have been merged and published (if appropriate)

Further comments

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[codecov]

Codecov Report

Patch coverage: 90.16% and no project coverage change.

Comparison is base (3760d55) 91.60% compared to head (af04f1c) 91.60%.

Additional details and impacted files

@@             Coverage Diff              @@
##           maintenance    #2292   +/-   ##
============================================
  Coverage        91.60%   91.60%           
============================================
  Files               90       90           
  Lines             9020     9021    +1     
  Branches          1853     1853           
============================================
+ Hits              8263     8264    +1     
  Misses             756      756           
  Partials             1        1           

Impacted Files	Coverage Δ
packages/zowe-explorer/src/uss/ZoweUSSNode.ts	93.99% <0.00%> (ø)
packages/zowe-explorer/src/uss/actions.ts	90.83% <0.00%> (ø)
packages/zowe-explorer/src/Profiles.ts	82.35% <50.00%> (ø)
...ges/zowe-explorer/src/abstract/ZoweTreeProvider.ts	81.01% <50.00%> (ø)
packages/zowe-explorer/src/shared/actions.ts	87.16% <50.00%> (ø)
packages/zowe-explorer/src/shared/init.ts	97.91% <75.00%> (ø)
packages/zowe-explorer/src/PersistentFilters.ts	100.00% <100.00%> (ø)
packages/zowe-explorer/src/SpoolProvider.ts	93.75% <100.00%> (+0.09%)	⬆️
packages/zowe-explorer/src/ZoweExplorerExtender.ts	86.36% <100.00%> (ø)
packages/zowe-explorer/src/dataset/DatasetTree.ts	88.64% <100.00%> (ø)
... and 9 more

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[JillieBeanSim]

LGTM! thanks @t1m0thyj for the fix

[traeok]

Thanks for adding this rule @t1m0thyj! This is a great use case for rewire 😁