Revert "[1.x] Upgrade immer from 8.0.1 to 9.0.6 (#786)"

This reverts commit ff23cc0.

Signed-off-by: Tommy Markley <markleyt@amazon.com>

package.json

@@ -81,7 +81,7 @@
     "**/front-matter": "^4.0.2",
     "**/glob-parent": "^6.0.0",
     "**/hoist-non-react-statics": "^3.3.2",
-    "**/immer": "^9.0.6",
+    "**/immer": "^8.0.1",
     "**/istanbul-instrumenter-loader/schema-utils": "^1.0.0",
     "**/kind-of": ">=6.0.3",
     "**/lodash": "^4.17.21",
@@ -398,7 +398,7 @@
     "gulp-sourcemaps": "2.6.5",
     "has-ansi": "^3.0.0",
     "history": "^4.9.0",
-    "immer": "^9.0.6",
+    "immer": "^8.0.1",
     "intl-messageformat-parser": "^1.4.0",
     "jest": "^26.4.2",
     "jest-canvas-mock": "^2.2.0",

yarn.lock

@@ -13337,10 +13337,10 @@ immediate@~3.0.5:
   resolved "https://registry.yarnpkg.com/immediate/-/immediate-3.0.6.tgz#9db1dbd0faf8de6fbe0f5dd5e56bb606280de69b"
   integrity sha1-nbHb0Pr43m++D13V5Wu2BigN5ps=
 
-immer@1.10.0, immer@^9.0.6:
-  version "9.0.6"
-  resolved "https://registry.yarnpkg.com/immer/-/immer-9.0.6.tgz#7a96bf2674d06c8143e327cbf73539388ddf1a73"
-  integrity sha512-G95ivKpy+EvVAnAab4fVa4YGYn24J1SpEktnJX7JJ45Bd7xqME/SCplFzYFmTbrkwZbQ4xJK1xMTUYBkN6pWsQ==
+immer@1.10.0, immer@^8.0.1:
+  version "8.0.1"
+  resolved "https://registry.yarnpkg.com/immer/-/immer-8.0.1.tgz#9c73db683e2b3975c424fb0572af5889877ae656"
+  integrity sha512-aqXhGP7//Gui2+UrEtvxZxSquQVXTpZ7KDxfCcKAF3Vysvw0CViVaW9RZ1j1xlIYqaaaipBoqdqeibkc18PNvA==
 
 import-cwd@^2.0.0:
   version "2.1.0"