ci: ignore github_conf in jscpd

[massongit]

Proposed changes

https://github.com/super-linter/super-linter/actions/runs/8674328025/job/23786540069

  2024-04-13 15:06:04 [INFO]   Linting JSCPD items...
  2024-04-13 15:06:05 [ERROR]   Found errors when linting JSCPD. Exit code: 1.
  2024-04-13 15:06:05 [INFO]   Command output for JSCPD:
  ------
  Error: ENOENT: no such file or directory, open '/github/workspace/github_conf/branch_protection_rules.json'
      at Object.openSync (node:fs:581:18)
      at Object.readFileSync (node:fs:457:35)
      at addContentToEntry (/node_modules/@jscpd/finder/dist/files.js:68:32)
      at Array.map (<anonymous>)
      at Object.getFilesToDetect (/node_modules/@jscpd/finder/dist/files.js:94:10)
      at exports.detectClones (/node_modules/jscpd/dist/index.js:27:28)
      at Object.<anonymous> (/node_modules/jscpd/dist/index.js:70:28)
      at Generator.next (<anonymous>)
      at /node_modules/jscpd/dist/index.js:8:71
      at new Promise (<anonymous>) {
    errno: -2,
    code: 'ENOENT',
    syscall: 'open',
    path: '/github/workspace/github_conf/branch_protection_rules.json'
  }

checkov creates a github_conf directory at runtime (See CKV_GITHUB_CONF_DIR_NAME Section in https://www.checkov.io/7.Scan%20Examples/Github.html ).
An error occurs if jscpd reads this.
Therefore, I ignore this from the running target of jscpd.

Readiness checklist

In order to have this pull request merged, complete the following tasks.

Pull request author tasks

• I included all the needed documentation for this change.
• I provided the necessary tests.
• I squashed all the commits into a single commit.
• I followed the Conventional Commit v1.0.0 spec.
• I wrote the necessary upgrade instructions in the upgrade guide.
• If this pull request is about and existing issue,
  I added the Fix #ISSUE_NUMBER label to the description of the pull request.

Super-linter maintainer tasks

• Label as breaking if this change breaks compatibility with the previous released version.
• Label as either: automation, bug, documentation, enhancement, infrastructure.

[ferrarimarco]

Thanks!