ci(renovate): try dedicated extractversion of fhir validator since th…

…e releases aren't v-prefixed

Dockerfile

@@ -48,7 +48,7 @@ curl -LSs "$PUBLISHER_DOWNLOAD_URL" --output /usr/local/bin/publisher.jar
 chmod +x /usr/local/bin/publisher.jar
 EOF
 
-# renovate: datasource=github-releases depName=hapifhir/org.hl7.fhir.core
+# renovate: datasource=github-releases depName=hapifhir/org.hl7.fhir.core extractVersion=^(?<version>.*)$
 ARG VALIDATOR_JAR_VERSION=6.5.5
 ARG VALIDATOR_JAR_DOWNLOAD_URL="https://github.com/hapifhir/org.hl7.fhir.core/releases/download/${VALIDATOR_JAR_VERSION}/validator_cli.jar"
 RUN <<EOF