chore(deps): pin dependencies

Author: renovate[bot]

Dockerfile

@@ -1,7 +1,7 @@
 # The devcontainer should use the developer target and run as root with podman
 # or docker with user namespaces.
 # Version SHA has been removed, see: https://github.com/DiamondLightSource/blueapi/issues/1053
-ARG PYTHON_VERSION=3.11
+ARG PYTHON_VERSION=3.11@sha256:ce3b954c9285a7a145cba620bae03db836ab890b6b9e0d05a3ca522ea00dfbc9
 FROM python:${PYTHON_VERSION} AS developer
 
 # Add any system dependencies for the developer/build environment here

helm/blueapi/values.yaml

@@ -9,7 +9,7 @@ image:
   pullPolicy: Always
   # Overrides the image tag whose default is the chart appVersion.
   # Do not set this to a package hash: https://github.com/DiamondLightSource/blueapi/issues/1046
-  tag: ""
+  tag: "@sha256:0a42ccb0a31146a0080ae69026d78f8bbbf221d6675c8e0f0054f9f114993a3d"
 
 imagePullSecrets: []
 nameOverride: ""