cloudprober 0.12.7

[chenrui333]

Created by brew bump

---

Created with brew bump-formula-pr.

release notes

## Alerting
It's official. Cloudprober is getting its own alerting functionality 🎉. This release marks the beginning of the alerting implementation. We'll add more ways to notify an alert, but you can already trigger a command on alert. User documentation coming soon, but in the meantime, you can take a look at the alerting config proto to get an idea.
PRs: #359, #361, #364, #365, #380, #384, #387
Enhancements

[probes.http] Provide a way to set custom user-agent. by @manugarg in #317
[probes.external] Add support for environment variables by @manugarg in #379, #386.
[surfacers.datadog] Add compression, and use batching, when posting metrics to dd by @robpickerill in #357, #358.
[surfacers] Adding a bigquery insertion. by @Pulkit0110 in #274
[cmd] Exit on non-flag arguments by @manugarg in #372.
[prober] Start probing more quickly by @manugarg in #382.
[validators] Log validation failure by @manugarg in #377.

Bug fixes

[probes.http] Set request's GetBody explicitly to make redirect work for POST requests with data. To make HTTP requests work same across Cloudprober, move HTTP request creation to a common package. This also allows for better testing. #373, #375, #376, #381, #383.
[probes.http] Fix a bug in connect_event metric update. by @manugarg in #388.
[rds.gcp] Delete a zone from cache if it's not discovered again. by @manugarg in [rds.gcp] Delete a zone from cache if it's not discovered again. cloudprober/cloudprober#318
[probestatus] Fix JS variable declarations by @manugarg in #321, #322
[probestatus] Fix the graph issue for probes with "." in name. by @manugarg in #363
[oauth] Fix a bug in http_token. by @manugarg in #371
[probes.external] Synchronize access to cmdRunning by @apolcyn in #395. Add tests to discover the same issue by @manugarg in #397.

Build

[oauth] Improve token source test reliability. by @manugarg in [oauth] Improve token source test reliability. cloudprober/cloudprober#325
[build] Update protoc-gen-go version to the latest by @manugarg in [build] Update protoc-gen-go version to the latest cloudprober/cloudprober#374
Update go.yml by @manugarg in #385
[metrics.testutils] Refactor testutils to make them more convenient by @manugarg in #378

Docs
Complete website (cloudprober.org) redesign: #327. Other PRs: #335, #344, #349, #351.
New Contributors

@Pulkit0110 made their first contribution in Adding new cloudprober surfacer for bigquery insertion. cloudprober/cloudprober#274
@apolcyn made their first contribution in Synchronize access to cmdRunning cloudprober/cloudprober#395

Full Changelog: cloudprober/cloudprober@v0.12.6...v0.12.7

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