pin shimmer to 1.2.1 (#531)

Author: duncanista

package.json

@@ -42,7 +42,7 @@
     "hot-shots": "8.5.0",
     "promise-retry": "^2.0.1",
     "serialize-error": "^8.1.0",
-    "shimmer": "^1.2.1",
+    "shimmer": "1.2.1",
     "ts-md5": "1.3.1"
   },
   "jest": {

yarn.lock

@@ -3775,7 +3775,7 @@ shell-quote@^1.8.1:
   resolved "https://registry.yarnpkg.com/shell-quote/-/shell-quote-1.8.1.tgz#6dbf4db75515ad5bac63b4f1894c3a154c766680"
   integrity sha512-6j1W9l1iAs/4xYBI1SYOVZyFcCis9b4KCLQ8fgAGG07QvzaRLVVRQvAy85yNmmZSjYjg4MWh4gNvlPujU/5LpA==
 
-shimmer@^1.2.1:
+[email protected]:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/shimmer/-/shimmer-1.2.1.tgz#610859f7de327b587efebf501fb43117f9aff337"
   integrity sha512-sQTKC1Re/rM6XyFM6fIAGHRPVGvyXfgzIDvzoq608vM+jeyVD0Tu1E6Np0Kc2zAIFWIj963V2800iF/9LPieQw==