fix: pin import-in-the-middle to v2.0.0 (#7148)

Version 2.0.1 was just released which causes issue with some of our CI
tests. It's too early to say if this is only a CI issue, but until we
can investigate, it's better to pin it.

Author: watson

package.json

@@ -127,7 +127,7 @@
   ],
   "dependencies": {
     "dc-polyfill": "^0.1.10",
-    "import-in-the-middle": "^2.0.0"
+    "import-in-the-middle": "2.0.0"
   },
   "optionalDependencies": {
     "@datadog/libdatadog": "0.7.0",

yarn.lock

@@ -2642,7 +2642,7 @@ import-fresh@^3.2.1:
     parent-module "^1.0.0"
     resolve-from "^4.0.0"
 
-import-in-the-middle@^2.0.0:
+import-in-the-middle@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/import-in-the-middle/-/import-in-the-middle-2.0.0.tgz#295948cee94d0565314824c6bd75379d13e5b1a5"
   integrity sha512-yNZhyQYqXpkT0AKq3F3KLasUSK4fHvebNH5hOsKQw2dhGSALvQ4U0BqUc5suziKvydO5u5hgN2hy1RJaho8U5A==