Dockerfile: remove gnupg from dev image (#1885)

* Dockerfile: remove `gnupg` from dev image
* Update CHANGELOG.md

CHANGELOG.md

@@ -26,7 +26,7 @@ IMPROVEMENTS:
 * Control-Plane
   * Add support for the annotation `consul.hashicorp.com/use-proxy-health-check`. When this annotation is used by a service, it configures a readiness endpoint on Consul Dataplane and queries it instead of the proxy's inbound port which forwards requests to the application. [[GH-1824](https://github.com/hashicorp/consul-k8s/pull/1824)], [[GH-1841](https://github.com/hashicorp/consul-k8s/pull/1841)]
   * Add health check for synced services based on the status of the Kubernetes readiness probe on synced pod. [[GH-1821](https://github.com/hashicorp/consul-k8s/pull/1821)]
-  * Remove extraneous `gnupg` depdency from `consul-k8s-control-plane` since it is no longer needed for validating binary artifacts prior to release. [[GH-1882](https://github.com/hashicorp/consul-k8s/pull/1882)]
+  * Remove extraneous `gnupg` dependency from `consul-k8s-control-plane` since it is no longer needed for validating binary artifacts prior to release. [[GH-1882](https://github.com/hashicorp/consul-k8s/pull/1882)]
 
 BUG FIXES:
 * Control Plane

control-plane/Dockerfile

@@ -41,7 +41,7 @@ LABEL name=${BIN_NAME} \
 ENV BIN_NAME=${BIN_NAME}
 ENV VERSION=${VERSION}
 
-RUN apk add --no-cache ca-certificates gnupg libcap openssl su-exec iputils libc6-compat iptables
+RUN apk add --no-cache ca-certificates libcap openssl su-exec iputils libc6-compat iptables
 
 # Create a non-root user to run the software.
 RUN addgroup ${BIN_NAME} && \