[JENKINS-73959] Use CSP compatible version of st:bind in PullRequestMonitoringPortlet/monitor.jelly

[yaroslavafenkin]

https://issues.jenkins.io/browse/JENKINS-73959

Testing done

Requires https://plugins.jenkins.io/pull-request-monitoring/ to be installed. I've set up a multibranch project, because that's the only supported project type according to https://plugins.jenkins.io/pull-request-monitoring/#plugin-content-prerequisites.
Also used https://plugins.jenkins.io/github-branch-source/ as branch source for the project. Repo I've used as the source is https://github.com/yaroslavafenkin/bad-project.

Before the change

After the change

Other CSP violations that appear in the video come from https://github.com/jenkinsci/pull-request-monitoring-plugin/blob/d602c91131a8112eef8cc9d00aee013f4443a307/src/main/resources/io/jenkins/plugins/monitoring/MonitoringDefaultAction/index.jelly#L60 and https://plugins.jenkins.io/muuri-api/ which is the dependency of Pull Request Monitoring.

Submitter checklist

• Make sure you are opening from a topic/feature/bugfix branch (right side) and not your main branch!
• Ensure that the pull request title represents the desired changelog entry
• Please describe what you did
• Link to relevant issues in GitHub or Jira
• Link to relevant pull requests, esp. upstream and downstream changes
• Ensure you have provided tests - that demonstrates feature works or fixes the issue

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.66%. Comparing base (da7e0e8) to head (b0031b8).

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #1868      +/-   ##
============================================
+ Coverage     82.62%   82.66%   +0.03%     
- Complexity     1365     1366       +1     
============================================
  Files           249      249              
  Lines          5243     5243              
  Branches        402      402              
============================================
+ Hits           4332     4334       +2     
+ Misses          801      799       -2     
  Partials        110      110              

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