fix(github-runner-scaler) Add support for key authentication against …

…GHES (#5384)

Signed-off-by: Adam Netočný <[email protected]>

CHANGELOG.md

@@ -136,6 +136,7 @@ Here is an overview of all new **experimental** features:
 - **Azure Pipelines**: No more HTTP 400 errors produced by poolName with spaces ([#5107](https://github.com/kedacore/keda/issues/5107))
 - **GCP pubsub scaler**: Added `project_id` to filter for metrics queries ([#5256](https://github.com/kedacore/keda/issues/5256))
 - **GCP pubsub scaler**: Missing use of default value of `value` added ([#5093](https://github.com/kedacore/keda/issues/5093))
+- **Github Runner Scaler**: github-runner-scaler is unable to work with custom API endpoint ([#5387](https://github.com/kedacore/keda/issues/5387))
 - **NATS JetSteam Scaler**: Raise an error if leader not found ([#5358](https://github.com/kedacore/keda/pull/5358))
 - **Pulsar scaler**: Fix panic when auth is not used ([#5271](https://github.com/kedacore/keda/issues/5271))
 - **ScaledJobs**: Copy ScaledJob annotations to child Jobs ([#4594](https://github.com/kedacore/keda/issues/4594))

pkg/scalers/github_runner_scaler.go

@@ -345,6 +345,7 @@ func NewGitHubRunnerScaler(config *scalersconfig.ScalerConfig) (Scaler, error) {
 		if err != nil {
 			return nil, fmt.Errorf("error creating GitHub App client: %w, \n appID: %d, instID: %d", err, meta.applicationID, meta.installationID)
 		}
+		hc.BaseURL = meta.githubAPIURL
 		httpClient = &http.Client{Transport: hc}
 	}