Add Docker build tests and manual image release automation (#36)

# Description
Adds docker build tests to unit test automation
Adds manual action to publish updated images (i.e. to build with updated
dependencies

# Issues
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here -->

# Other Notes
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.github/workflows/unit_tests.yml

@@ -8,6 +8,8 @@ jobs:
     uses: neongeckocom/.github/.github/workflows/python_build_tests.yml@master
     with:
       python_version: "3.9"
+  docker_build_tests:
+    uses: neongeckocom/.github/.github/workflows/docker_build_tests.yml@master
   unit_tests:
     strategy:
       matrix:

.github/workflows/update_docker_images.yml

@@ -0,0 +1,11 @@
+name: Publish Updated Docker image
+on:
+  workflow_dispatch:
+
+jobs:
+
+  build_and_publish_docker:
+    uses: neongeckocom/.github/.github/workflows/publish_docker.yml@master
+    secrets: inherit
+    with:
+      include_semver: False