[VRF-892] Remove noisy log poller warning for VRFv2(+) jobs

[vreff]

Removes logic that repeatedly calls the Log Poller's RegisterFilter function, which fires off a noisy warning for duplicates. Instead checks the log poller for an existing filter and registers one if not found.

[github-actions[bot]]

I see that you haven't updated any CHANGELOG files. Would it make sense to do so?

[vreff]

Sorry for the re-review request here, the PR had an orphaned goroutine in the test so it was causing failures in GH actions. Also, added a git changeset.

[jinhoonbang]

looks good but there is a merge conflict again. will re approve once that's resolved

[cl-sonarqube-production[bot]]

Quality Gate passed

Issues
0 New issues
0 Fixed issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube