* Adds scopeUID config to enable multiple instances of Watchtower
* Adds tests for multiple instance support with scopeuid
* Adds docs on scope monitoring and multiple instance support
* Adds multiple instances docs to mkdocs config file
* Changes multiple instances check and refactors naming for scope feature
* Applies linter suggestions
* Fixes documentation on Watchtower monitoring scope
* feat(update): add lifecycle hooks to the update action
* fix(ci): add bash tests for lifecycle-hooks to the ci workflow
* fix(ci): move integration tests to an isolated step
* fix(ci): fix malformed all-contributors json
* fix(ci): disable automatic bash test until we figure out a reasonable way to run it in circleci
