update all lookups to use the standardized query syntax

[ITProKyle]

Before the release of v2.0.0, Runway introduced a standardized syntax for lookups. The preexisting CFNgin lookups were not updated to comply with the standard. We should update these lookups before the next major release, deprecating the legacy syntax, so we can remove support for the legacy syntax in the next major release. This is intended to provide a more unified experience.

NOTE: Documentation MUST be updated accordingly with new syntax, examples, and deprecation note. The lookup must also log a deprecated message when the legacy syntax is used.

• update runway.cfngin.lookups.handlers.ami to use the standardized query syntax #1185
• update runway.cfngin.lookups.handlers.default to use the standardized query syntax #1186
• update runway.cfngin.lookups.handlers.dynamodb to use the standardized query syntax #1187
• updaterunway.cfngin.lookups.handlers.envvar to use the standardized query syntax #1188
• update runway.cfngin.lookups.handlers.file to use the standardized query syntax #1189
• update runway.cfngin.lookups.handlers.kms to use the standardized query syntax #1190
• update runway.cfngin.lookups.handlers.output to use the standardized query syntax #1191
• update runway.cfngin.lookups.handlers.rxref to use the standardized query syntax #1192
• update runway.cfngin.lookups.handlers.split to use the standardized query syntax #1193
• update runway.cfngin.lookups.handlers.xref to use the standardized query syntax #1194

Once complete, create a new issue for removing support for legacy query syntax in v3.0.0 (e.g. #1305).