chore: fix mehdi github user name

.github/CODEOWNERS

@@ -3,4 +3,4 @@
 
 # These owners will be the default owners for everything in
 # the repo. Unless a later match takes precedence
-*       @scolladon @mehdisfdc
+*       @scolladon @mehdicherf

.github/linters/.cspell.json

@@ -77,7 +77,7 @@
         "mdapi",
         "megalinter",
         "mehdi",
-        "mehdisfdc",
+        "mehdicherf",
         "metafile",
         "metafile",
         "mjyhjbm",

README.md

@@ -125,7 +125,7 @@ sfdx plugins:install sfdx-git-delta
 
 Because this plugin is not signed, you will get a warning saying that "This plugin is not digitally signed and its authenticity cannot be verified". This is expected, and you will have to answer `y` (yes) to proceed with the installation.
 
-If you run your CI/CD jobs inside a Docker image, you can add the plugin to your image (such as in [this example](https://github.com/mehdisfdc/sfdx-cli-gitlab)). If you use GitHub Actions, you can find some examples of using SGD [here](https://github.com/mehdisfdc/sfdx-GitHub-actions/tree/main/.github/workflows).
+If you run your CI/CD jobs inside a Docker image, you can add the plugin to your image (such as in [this example](https://github.com/mehdicherf/sfdx-cli-gitlab)). If you use GitHub Actions, you can find some examples of using SGD [here](https://github.com/mehdicherf/sfdx-GitHub-actions/tree/main/.github/workflows).
 
 ⚠️ The Salesforce CLI plugin is now the only supported way to install SGD. There used to be another way to install it using yarn or npm. The legacy `sgd` command is now deprecated and decommissioned.
 
@@ -551,7 +551,7 @@ Versioning follows [SemVer](http://semver.org/) specification.
 ## Authors
 
 - **Sebastien Colladon** - Developer - [scolladon](https://github.com/scolladon)
-- **Mehdi Cherfaoui** - Tester - [mehdisfdc](https://github.com/mehdisfdc)
+- **Mehdi Cherfaoui** - Tester - [mehdicherf](https://github.com/mehdicherf)
 
 ## Contributing