Prep for v0.16.6 release (#1128)

Signed-off-by: Casey Buto <cbuto22@gmail.com>

Author: cbuto

Makefile

@@ -1,5 +1,5 @@
 # TODO(cbuto): Pull from git tag to avoid needing to bump this prior to releasing
-VERSION ?= 0.16.5
+VERSION ?= 0.16.6
 REVISION := $(shell git rev-parse --short HEAD;)
 
 BINDIR      := $(CURDIR)/bin

README.md

@@ -472,7 +472,7 @@ docker run --rm -it \
   -e STORAGE=local \
   -e STORAGE_LOCAL_ROOTDIR=/charts \
   -v $(pwd)/charts:/charts \
-  ghcr.io/helm/chartmuseum:v0.16.5
+  ghcr.io/helm/chartmuseum:v0.16.6
 ```
 
 Example usage (S3):
@@ -485,7 +485,7 @@ docker run --rm -it \
   -e STORAGE_AMAZON_PREFIX="" \
   -e STORAGE_AMAZON_REGION="us-east-1" \
   -v ~/.aws:/home/chartmuseum/.aws:ro \
-  ghcr.io/helm/chartmuseum:v0.16.5
+  ghcr.io/helm/chartmuseum:v0.16.6
 ```
 
 ### Helm Chart