Bump csharpier from 1.1.2 to 1.2.1 (#147)

---
updated-dependencies:
- dependency-name: csharpier
  dependency-version: 1.2.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: konstantin <konstantin.klein@hochfrequenz.de>

Author: dependabot[bot]

.config/dotnet-tools.json

@@ -3,7 +3,7 @@
   "isRoot": true,
   "tools": {
     "csharpier": {
-      "version": "1.1.2",
+      "version": "1.2.1",
       "commands": [
         "csharpier"
       ],