minor bug fixes, tweaks, docs, dependency upgrades

v1.12.0

• PQ-229 Use github actions, report code coverage to sonar #265
• PQ-228 Update sonar docker image and use properties file #264
• Add !$join function #249
• Add handlebars-helpers string helpers #251
• Touches up some spelling and grammar issues #244
• Avoid calling fs.statSync when input is from stdin #260
• Fixes spelling of command-implementations fe8386a
• Touches up some spelling/grammar in documentation fb52564
• fix spelling mistake in the README 567a66e
• add DELETE_SKIPPED as a colorized status d62b766
• Accept derived values for !$split and !$join 39ed8fd
• Add documentation a8fb86c
• Add toJson, toYaml alias, accept non literal values 5ec7d6f
• Bump lodash from 4.17.15 to 4.17.19 83ef7f6
• Use toJsonString/toYamlString 1b9299a
• Clarify what is happening with trailing characters afa9de3
• Add note about purpose of !$split and !$join 4acdfa0
• Deprecate non-camelCase helpers 863b0e9
• Use S3 template object limit when doing template approval request 8926290
• Bump node-fetch from 2.6.0 to 2.6.1 8d7b662
• Bump dot-prop from 4.2.0 to 4.2.1 bd9b402
• bump laundry to v1.6.0 944aa66
• updates s3 template size to match new max of 1MB; updates using s3 template size when loading a template for approval since the template will be stored on s3 db225b8
• bump deps and update a few exception types as required for ts update abd19a9
• update aws-sdk-js version (with our creds cache patch) a6b375d
• bump node version to 14x 63747d4
• update gen-changelog script and deps c7ec9aa

sha256 hashes

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