fix(ci): disable lefthook in publish workflow

Changesets action commits version bumps which triggers lefthook's
pre-commit hook in CI. The hook runs nx affected which fails without
an Nx Cloud DTE agent context. Setting LEFTHOOK=0 skips hooks for
all git operations in the publish jobs.

Also replaces stale HUSKY=0 with LEFTHOOK=0 in the snapshot job.

Author: ryanbas21

.github/workflows/publish.yml

@@ -40,6 +40,8 @@ jobs:
       pull-requests: write
       id-token: write
     runs-on: ubuntu-latest
+    env:
+      LEFTHOOK: 0
     steps:
       - uses: actions/checkout@v4
         with:
@@ -101,7 +103,7 @@ jobs:
       pull-requests: write
     runs-on: ubuntu-latest
     env:
-      HUSKY: 0
+      LEFTHOOK: 0
     steps:
       - name: Branch name
         run: |