Update jnorwood/helm-docs Docker tag to v1.11.3 (#13)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| jnorwood/helm-docs | final | minor | `v1.5.0` -> `v1.11.3` |

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Dockerfile

@@ -13,7 +13,7 @@ RUN apk --no-cache add bash yq git patch py-pip py3-ruamel.yaml gcc musl-dev pyt
 RUN pip install pybump yamale yamllint pyyaml
 
 COPY --from=alpine/helm:latest /usr/bin/helm /usr/bin/helm
-COPY --from=jnorwood/helm-docs:v1.5.0 /usr/bin/helm-docs /usr/bin/helm-docs
+COPY --from=jnorwood/helm-docs:v1.11.3 /usr/bin/helm-docs /usr/bin/helm-docs
 
 COPY entrypoint.sh /entrypoint.sh
 RUN chmod +x /entrypoint.sh