fix(deps): keep typescript below 6 for ts-jest

.github/dependabot.yml

@@ -13,6 +13,10 @@ updates:
     commit-message:
       prefix: "deps"
     rebase-strategy: "auto"
+    ignore:
+      - dependency-name: "typescript"
+        update-types:
+          - "version-update:semver-major"
     groups:
       production-dependencies:
         dependency-type: "production"