deps: update @gar/promisify requirement from ^1.0.1 to ^1.1.3 (#14)

Updates the requirements on [@gar/promisify](https://github.com/wraithgar/gar-promisify) to permit the latest version.
- [Release notes](https://github.com/wraithgar/gar-promisify/releases)
- [Commits](wraithgar/gar-promisify@v1.0.1...v1.1.3)

---
updated-dependencies:
- dependency-name: "@gar/promisify"
  dependency-type: direct:production
...

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package.json

@@ -32,7 +32,7 @@
     "tap": "^15.0.9"
   },
   "dependencies": {
-    "@gar/promisify": "^1.0.1",
+    "@gar/promisify": "^1.1.3",
     "semver": "^7.3.5"
   },
   "engines": {