Fix esy.lock linguist flag

Author: Ulrik Strid

.gitattributes

@@ -2,7 +2,7 @@
 # The .js files in the .ci folder are bascially vendored
 .ci/*.js linguist-vendored
 # This also supresses the lock folder from the diffs
-esy.lock/* linguist-vendored
+esy.lock/* linguist-generated=true
 # Tell github that .re and .rei files are Reason
 *.re linguist-language=Reason
 *.rei linguist-language=Reason