Remove deprecated tlsCertFile from External scaler (#6338) #1669

Job	Run time
build	10m 37s
trivy-scan / Trivy - ubuntu-latest - fs	56s
trivy-scan-keda (ARM64) / Trivy - ARM64 - image ghcr.io/kedacore/keda:main	28s
trivy-scan-metrics-server (ARM64) / Trivy - ARM64 - image ghcr.io/kedacore/keda-metrics-apiserver:main	30s
trivy-scan-keda (ubuntu-latest) / Trivy - ubuntu-latest - image ghcr.io/kedacore/keda:main	32s
trivy-scan-metrics-server (ubuntu-latest) / Trivy - ubuntu-latest - image ghcr.io/kedacore/keda-metrics-apiserver:main	23s
validate-k8s-versions / ubuntu-latest (v1.28) / Validate k8s-v1.28	6m 44s
validate-k8s-versions / ubuntu-latest (v1.29) / Validate k8s-v1.29	6m 36s
validate-k8s-versions / ubuntu-latest (v1.30) / Validate k8s-v1.30	6m 37s
validate / Run e2e test	1s
validate-arm64 / ARM64 / Validate k8s-v1.30	5m 15s
	38m 39s

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