Remove "executable" bit from code files

[icmdaf]

They serve no purpose, but I suspect seem to annoy a security lint.

Some code files have 755 permissions, others didn't, probably random depending on which OS was used to submit.

[icmdaf]

The check failures look like flakes, but I don't have permissions to rerun them.

[jlerbsc]

Why do you want to push this change? What is the problem you are trying to solve?

[jlerbsc]

The errors seem to be related to codecov

 [2022-11-17T17:17:57.875Z] ['error'] There was an error running the uploader: Error uploading to [https://codecov.io:] 
(https://codecov.io/) Error: There was an error fetching the storage URL during POST: [40](https://github.com/javaparser/javaparser/actions/runs/3490304574/jobs/5841563430#step:7:41)4 - {'detail': 
ErrorDetail(string='Unable to locate build via Github Actions API. Please upload with the Codecov repository upload token to resolve issue.', code='not_found')}
Error: Codecov: Failed to properly upload: The process '/Users/runner/work/_actions/codecov/codecov-action/v3.1.1/dist/codecov' failed with exit code 255

[icmdaf]

Why

IIUC our organisation has a security linter that requires extra review when pulling executable files (to make sure we don't fetch harmful scripts). So it requires this extra review for the safe java files as well, in case someone makes them a shell script. Not setting them as executable removes this attack vector.

The errors

Could you kick off a rerun of the failures? It looks like the coverage itself succeeded, just the upload failed due to some consistency issue?

Thanks :)

[codecov]

Codecov Report

Merging #3755 (6dc6a64) into master (587849c) will not change coverage.
The diff coverage is n/a.

@@              Coverage Diff              @@
##              master     #3755     +/-   ##
=============================================
  Coverage     57.433%   57.433%             
- Complexity      2680      5463   +2783     
=============================================
  Files            636       636             
  Lines          33613     33613             
  Branches        5791      5791             
=============================================
  Hits           19305     19305             
  Misses         12254     12254             
  Partials        2054      2054             

Flag	Coverage Δ
AlsoSlowTests	57.433% <ø> (ø)
javaparser-core	52.617% <ø> (ø)
javaparser-symbol-solver	36.762% <ø> (ø)
jdk-10	57.428% <ø> (ø)
jdk-11	57.425% <ø> (ø)
jdk-12	57.422% <ø> (ø)
jdk-13	57.428% <ø> (ø)
jdk-14	57.428% <ø> (ø)
jdk-15	57.428% <ø> (ø)
jdk-16	57.428% <ø> (ø)
jdk-8	57.424% <ø> (-0.006%)	⬇️
jdk-9	57.422% <ø> (-0.006%)	⬇️
macos-latest	57.421% <ø> (ø)
ubuntu-latest	57.418% <ø> (ø)
windows-latest	57.412% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...ithub/javaparser/printer/DefaultPrettyPrinter.java	100.000% <ø> (ø)
...avaparser/printer/DefaultPrettyPrinterVisitor.java	92.851% <ø> (ø)
...nter/configuration/DefaultConfigurationOption.java	81.481% <ø> (ø)
...ter/configuration/DefaultPrinterConfiguration.java	87.096% <ø> (ø)
.../javaparser/printer/configuration/Indentation.java	97.058% <ø> (ø)
...r/symbolsolver/javaparsermodel/FailureHandler.java	42.857% <ø> (ø)
...ution/promotion/BooleanConditionalExprHandler.java	71.428% <ø> (ø)
.../resolution/promotion/ConditionalExprResolver.java	75.000% <ø> (ø)
...ution/promotion/NumericConditionalExprHandler.java	64.814% <ø> (ø)
...ion/promotion/ReferenceConditionalExprHandler.java	100.000% <ø> (ø)
... and 1 more

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