Bump altcover.global from 8.8.173 to 8.9.3

Bumps [altcover.global](https:/SteveGilham/altcover) from 8.8.173 to 8.9.3.
- [Release notes](https:/SteveGilham/altcover/releases)
- [Changelog](https:/SteveGilham/altcover/blob/master/ReleaseNotes.md)
- [Commits](SteveGilham/altcover@release/v8.8.173...release/v8.9.3)

---
updated-dependencies:
- dependency-name: altcover.global
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

.config/dotnet-tools.json

@@ -3,7 +3,7 @@
  "isRoot": true,
  "tools": {
  "altcover.global": {
- "version": "8.8.173",
+ "version": "8.9.3",
  "commands": [
  "altcover"
  ]