fix: Update mindthegap to fix cert rotation (#972)

**What problem does this PR solve?**:
Previously, mindthegap required a restart rollout after its certificate
was rotated. It will now use updated certificates without restarting.

Also see https://github.com/mesosphere/mindthegap/releases/tag/v1.17.0 

**Which issue(s) this PR fixes**:
Fixes https://jira.nutanix.com/browse/NCN-104087

**How Has This Been Tested?**:
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Author: dlipovetsky

hack/addons/mindthegap-helm-registry/Dockerfile

@@ -1,4 +1,4 @@
-ARG MINDTHEGAP_VERSION=v1.14.4
+ARG MINDTHEGAP_VERSION=v1.17.0
 
 FROM --platform=${BUILDPLATFORM} ghcr.io/mesosphere/mindthegap:${MINDTHEGAP_VERSION} as bundle_builder
 # this gets called by goreleaser so the copy source has to be the path relative to the repo root.