fix: add repository key on search-token-server

[y-lakhdar]

https://coveord.atlassian.net/browse/CDX-547

Proposed changes

Just to prevent the following warning:

Created git commit.

›   Warning: 
›         An unknown error occurred while trying to copy the search token server. Please refer to cdx545/README.md for more information.
›         npm notice created a lockfile as package-lock.json. You should commit this file.
›   npm WARN @coveo/[email protected] No repository field.
›
›
›      

Testing

Pretty straight forward... not sure we need tests for that

• Unit Tests:

• Functionnal Tests:

• Manual Tests:

[louis-bompart]

lgtm overall:

• changes scope to 'fix': it fixes an issue, so it's a fix ;)
• add directory field