chore(deps): update dependency helm/helm to v4.2.1

Author: renovate[bot]

Containerfile

@@ -68,7 +68,7 @@ RUN curl -L https://mirror.openshift.com/pub/openshift-v4/clients/ocp/stable-4.2
 # Required for collecting Helm-based RHDH deployments
 # Installing directly from GitHub releases instead of using the install script
 # to avoid dependency on openssl for checksum verification
-RUN curl -fsSL "https://get.helm.sh/helm-v4.2.0-linux-amd64.tar.gz" -o helm.tar.gz \
+RUN curl -fsSL "https://get.helm.sh/helm-v4.2.1-linux-amd64.tar.gz" -o helm.tar.gz \
     && tar xzf helm.tar.gz \
     && mv linux-amd64/helm /usr/local/bin/helm \
     && rm -rf helm.tar.gz linux-amd64 \