Don't put colons in file names

[kgilpin]

Avoid colons in file names.

MacOS (I fixed up the first one manually):

I suppose they may be legal on Linux but for consistency's sake why not just always avoid them?

[appland-release]

:tada: This issue has been resolved in version 2.19.2 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: