Update dependency cloudfoundry/credhub-cli to v2.9.27 (#55)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Dockerfile

@@ -29,7 +29,7 @@ RUN wget -O control-tower https://github.com/EngineerBetter/control-tower/releas
 
 # Install CredHub
 # renovate: datasource=github-releases depName=cloudfoundry/credhub-cli
-ENV CREDHUB_VERSION=2.9.26
+ENV CREDHUB_VERSION=2.9.27
 RUN wget https://github.com/cloudfoundry/credhub-cli/releases/download/${CREDHUB_VERSION}/credhub-linux-amd64-${CREDHUB_VERSION}.tgz && \
     tar -xzvf credhub-linux-amd64-${CREDHUB_VERSION}.tgz && \
     rm -rf credhub-linux-amd64-${CREDHUB_VERSION}.tgz && \