Add test retry attempts to after hooks

[mgrybyk]

Proposed changes

• add TEST retries limit and attempts to after test / hook.

• add SPEC FILE retries attempts to config browser.config.specFileRetryAttempts. We already have specFileRetries in config defined by user.
  

Types of changes

• 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)
• Documentation update

Checklist

• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

Further comments

works same in mocha, cucumber, etc

fixes #4662

Reviewers: @webdriverio/technical-committee

[codecov]

Codecov Report

Merging #4722 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #4722      +/-   ##
==========================================
+ Coverage   99.39%   99.39%   +<.01%     
==========================================
  Files         207      207              
  Lines        5302     5306       +4     
  Branches     1146     1145       -1     
==========================================
+ Hits         5270     5274       +4     
  Misses         29       29              
  Partials        3        3

Impacted Files	Coverage Δ
...es/webdriverio/src/commands/element/isClickable.js	100% <ø> (ø)	⬆️
packages/wdio-runner/src/index.js	97.08% <100%> (+0.02%)	⬆️
...ges/wdio-utils/src/test-framework/testFnWrapper.js	100% <100%> (ø)	⬆️
...o-utils/src/test-framework/testInterfaceWrapper.js	100% <100%> (ø)	⬆️
packages/wdio-sync/src/index.js	100% <100%> (ø)	⬆️

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[mgrybyk]

specFileRetryAttempts is not available in hooks in this because context of hooks is not config but a copy of config, see https://github.com/webdriverio/webdriverio/blob/master/packages/wdio-config/src/lib/ConfigParser.js#L49

we can use browser.config.specFileRetryAttempts instead

example

afterTest () {
    browser.config.specFileRetryAttempts // works!
    this.specFileRetryAttempts // not available
},

[christian-bromann]

👍