Try to reduce CI failures due to maven central flakiness

[trask]

Worth trying, the failures have really picked up lately...

[trask]

I'm not sure this worked, still seeing a good number of failures when dependencies are not found in cache, e.g. on the PR that updates junit-pioneer to 1.9.0:

Could not determine the dependencies of task ':benchmark-jfr-analyzer:test'.
> Could not resolve all task dependencies for configuration ':benchmark-jfr-analyzer:testRuntimeClasspath'.
   > Could not resolve org.junit-pioneer:junit-pioneer:1.9.0.
     Required by:
         project :benchmark-jfr-analyzer
      > Could not resolve org.junit-pioneer:junit-pioneer:1.9.0.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/junit-pioneer/junit-pioneer/1.9.0/junit-pioneer-1.9.0.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/junit-pioneer/junit-pioneer/1.9.0/junit-pioneer-1.9.0.pom'.
               > Connect to repo.maven.apache.org:443 [repo.maven.apache.org/146.75.28.215] failed: Connect timed out