chore: skip cz if commit message is auto-generated

When releasing a new version, 'git commit -m "<version>"' is automatically executed. But since there
is an hook to run cz when the 'git commit' command is used, cz was also being used when the commit
message was are-defined. A check was necessary to prevent that from happening.

.husky/prepare-commit-msg

@@ -1,4 +1,6 @@
 #!/usr/bin/env sh
 . "$(dirname -- "$0")/_/husky.sh"
 
-exec < /dev/tty && yarn cz --hook || true
+if [ "$NO_HOOK" != "1" ]; then
+  exec < /dev/tty && yarn cz --hook || true
+fi

package.json

@@ -15,7 +15,7 @@
         "test:library": "jest packages/${0}",
         "test:circuits": "yarn workspace @zk-kit/circuits test",
         "test:contracts": "yarn workspace imt.sol test:coverage",
-        "version:bump": "yarn workspace @zk-kit/${0} version ${1} && git commit -am \"chore(${0}): v${1}\" && git tag ${0}-v${1}",
+        "version:bump": "yarn workspace @zk-kit/${0} version ${1} && NO_HOOK=1 git commit -m \"chore(${0}): v${1}\" && git tag ${0}-v${1}",
         "version:publish": "yarn workspaces foreach -A --no-private npm publish --tolerate-republish --access public",
         "version:release": "changelogithub",
         "lint": "eslint . --ext .js,.ts && yarn workspace imt.sol lint",