chore(main): release 0.2.0

:robot: I have created a release beep boop

build helm image multi arch (410e279)
bump the resource class to medium when running tests (2c976c8)
construct the correct docker push command (8e6467e)
ensure 'build promise' does not fail when there are no workflows and when logging that no promise.yaml has been found (0dd8a90)
error gracefully when no workflows exist when building a container (d0a2810)
error if the --name flag specifies a non-existent container name (63aaefa)
handle no promise or workflow file existing (725c8c2)
increase no_output_timeout for helm operator tests (29e4dac)
make 'build container' command description more descriptive (e6f5b99)
refactor parsing args logic (e7ebf52)
update buildx example with build args (2c69014)
handle single file dependencies with the --image flag (824a5f1)

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