Fix the qrcode package version as it is only ever used for testing.

package.json

@@ -50,7 +50,7 @@
     "@rollup/plugin-replace": "^3.0.1",
     "@types/jest": "^27.4.0",
     "@types/node": "^17.0.10",
-    "@types/qrcode": "^1.4.2",
+    "@types/qrcode": "1.4.2",
     "@types/sax": "^1.2.4",
     "@typescript-eslint/eslint-plugin": "^5.10.0",
     "@typescript-eslint/parser": "^5.10.0",
@@ -67,7 +67,7 @@
     "mockdate": "^3.0.2",
     "nyc": "^15.0.1",
     "prettier": "^2.5.1",
-    "qrcode": "^1.4.4",
+    "qrcode": "1.4.4",
     "rimraf": "^3.0.2",
     "rollup": "^2.64.0",
     "rollup-plugin-dts": "^4.1.0",

yarn.lock

@@ -907,7 +907,7 @@
   resolved "https://registry.yarnpkg.com/@types/prettier/-/prettier-2.4.2.tgz#4c62fae93eb479660c3bd93f9d24d561597a8281"
   integrity sha512-ekoj4qOQYp7CvjX8ZDBgN86w3MqQhLE1hczEJbEIjgFEumDy+na/4AJAbLXfgEWFNB2pKadM5rPFtuSGMWK7xA==
 
-"@types/qrcode@^1.4.2":
+"@types/[email protected]":
   version "1.4.2"
   resolved "https://registry.yarnpkg.com/@types/qrcode/-/qrcode-1.4.2.tgz#7d7142d6fa9921f195db342ed08b539181546c74"
   integrity sha512-7uNT9L4WQTNJejHTSTdaJhfBSCN73xtXaHFyBJ8TSwiLhe4PRuTue7Iph0s2nG9R/ifUaSnGhLUOZavlBEqDWQ==
@@ -4075,7 +4075,7 @@ punycode@^2.1.0, punycode@^2.1.1:
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-2.1.1.tgz#b58b010ac40c22c5657616c8d2c2c02c7bf479ec"
   integrity sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A==
 
-qrcode@^1.4.4:
+[email protected]:
   version "1.4.4"
   resolved "https://registry.yarnpkg.com/qrcode/-/qrcode-1.4.4.tgz#f0c43568a7e7510a55efc3b88d9602f71963ea83"
   integrity sha512-oLzEC5+NKFou9P0bMj5+v6Z40evexeE29Z9cummZXZ9QXyMr3lphkURzxjXgPJC5azpxcshoDWV1xE46z+/c3Q==