🏗 Use eslint-plugin-jsdoc instead of the built in valid-jsdoc

[rsimha]

The valid-jsdoc rule built in to eslint (we started using it in #15256) has a few problems:

• Complains about return types when run against interfaces (Interfaces should not have return statements #15293)
• Complains about syntax errors with type names that are from relative paths (Relative types should be valid #15295)
• Complains about syntax errors with type names that are function types (Inline function types should have its return value read in linter #15296)

This PR does the following:

• Mitigates the problems above by using eslint-plugin-jsdoc, which is more sophisticated than the built in valid-jsdoc. See https://github.com/gajus/eslint-plugin-jsdoc
• Fixes the case where eslint was being executed on an empty glob when there are no .js files in the PR / commit being tested.

Fixes #15293
Fixes #15295
Fixes #15296
Partial fix for #15255
Follow up to #15256

[rsimha]

#15293

Before:

[22:00:29] /Users/rsimha/src/amphtml/src/video-interface.js
   33:3  error  Unexpected @return tag; function has no return statement  valid-jsdoc
   40:3  error  Unexpected @return tag; function has no return statement  valid-jsdoc
   49:3  error  Unexpected @return tag; function has no return statement  valid-jsdoc
   55:3  error  Unexpected @return tag; function has no return statement  valid-jsdoc
   61:3  error  Unexpected @return tag; function has no return statement  valid-jsdoc
  105:3  error  JSDoc syntax error                                        valid-jsdoc
  116:3  error  Unexpected @return tag; function has no return statement  valid-jsdoc
  127:3  error  Unexpected @return tag; function has no return statement  valid-jsdoc
  153:3  error  Unexpected @return tag; function has no return statement  valid-jsdoc
  451:1  error  JSDoc syntax error                                        valid-jsdoc

✖ 10 problems (10 errors, 0 warnings)

After:

[21:57:02] SUCCESS: No linter warnings or errors.

[rsimha]

/to @alanorozco @jridgewell

[rsimha]

#15295, #15296

Before:

[22:22:53] /Users/rsimha/src/amphtml/src/service/video-manager-impl.js
    75:3  error  JSDoc syntax error                                        valid-jsdoc
    78:3  error  Unexpected @return tag; function has no return statement  valid-jsdoc
    86:3  error  JSDoc syntax error                                        valid-jsdoc
   120:3  error  JSDoc syntax error                                        valid-jsdoc
   147:5  error  Missing JSDoc @returns for function                       valid-jsdoc
   179:3  error  Missing JSDoc for parameter 'entry'                       valid-jsdoc
   234:3  error  JSDoc syntax error                                        valid-jsdoc
   297:3  error  JSDoc syntax error                                        valid-jsdoc
   340:3  error  JSDoc syntax error                                        valid-jsdoc
   351:3  error  JSDoc syntax error                                        valid-jsdoc
   359:3  error  JSDoc syntax error                                        valid-jsdoc
   435:5  error  Missing JSDoc @returns for function                       valid-jsdoc
   532:3  error  Missing JSDoc @returns for function                       valid-jsdoc
   903:3  error  JSDoc syntax error                                        valid-jsdoc
   931:3  error  JSDoc syntax error                                        valid-jsdoc
   980:3  error  JSDoc syntax error                                        valid-jsdoc
  1150:3  error  Missing JSDoc @returns for function                       valid-jsdoc
  1177:3  error  Missing JSDoc @returns for function                       valid-jsdoc
  1182:3  error  Missing JSDoc @returns for function                       valid-jsdoc
  1219:3  error  Missing JSDoc @returns for function                       valid-jsdoc
  1290:1  error  JSDoc syntax error                                        valid-jsdoc

✖ 21 problems (21 errors, 0 warnings)

After:

[22:24:40] /Users/rsimha/src/amphtml/src/service/video-manager-impl.js
  179:3  error  Missing JSDoc @param "entry" declaration         jsdoc/require-param
  199:3  error  Missing JSDoc @param "video" declaration         jsdoc/require-param
  226:3  error  Missing JSDoc @param "videoElement" declaration  jsdoc/require-param
  334:3  error  Missing JSDoc @param "videoElement" declaration  jsdoc/require-param
  532:3  error  Invalid JSDoc tag name "retun"                   jsdoc/check-tag-names
  877:3  error  Invalid JSDoc tag name "package"                 jsdoc/check-tag-names
  966:1  error  Invalid JSDoc tag name "restricted"              jsdoc/check-tag-names

✖ 7 problems (7 errors, 0 warnings)