chore: beta to master B15S6

feat(ios): testflight builds for PRs

fix(iOS): check version during package install

auto: increment master version to 16.0.7

auto: increment beta version to 15.0.229

package install fails with alert if Keyman version in use is lower than the minimum specified in the package

fix(mac): check package fileVersion during install

feat(web): prediction casing follows current layer

chore(deps): bump minimist from 1.2.5 to 1.2.6 in /developer/server

Bumps [minimist](https://github.com/substack/minimist) from 1.2.5 to 1.2.6.
- [Release notes](https://github.com/substack/minimist/releases)
- [Commits](https://github.com/substack/minimist/compare/1.2.5...1.2.6

)

---
updated-dependencies:
- dependency-name: minimist
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

Merge pull request #6471 from keymanapp/dependabot/npm_and_yarn/web/testing/regression-tests/minimist-1.2.6

chore(deps-dev): bump minimist from 1.2.5 to 1.2.6 in /web/testing/regression-tests

Merge pull request #6470 from keymanapp/dependabot/npm_and_yarn/web/testing/regression-tests/ansi-regex-3.0.1

chore(deps): bump ansi-regex from 3.0.0 to 3.0.1 in /web/testing/regression-tests

auto: increment master version to 16.0.6

auto: increment beta version to 15.0.228

docs(linux): Update testing section in readme

feat(developer): check for duplicate store/group names

fix(developer): validate kmconvert parameters

Bumps [minimist](https://github.com/substack/minimist) from 1.2.5 to 1.2.6.
- [Release notes](https://github.com/substack/minimist/releases)
- [Commits](https://github.com/substack/minimist/compare/1.2.5...1.2.6

)

---
updated-dependencies:
- dependency-name: minimist
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

Bumps [ansi-regex](https://github.com/chalk/ansi-regex) from 3.0.0 to 3.0.1.
- [Release notes](https://github.com/chalk/ansi-regex/releases)
- [Commits](https://github.com/chalk/ansi-regex/compare/v3.0.0...v3.0.1

)

---
updated-dependencies:
- dependency-name: ansi-regex
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

chore(common): beta to master B15S6

fix(developer): icon editor font color now follows fgcolor

feat(developer): add Clear All button to icon editor

feat(developer): check filename case consistency when compiling keyboard