Pin dependencies

package.json

@@ -31,18 +31,18 @@
     "hash-obj": "^3.0.0"
   },
   "devDependencies": {
-    "@babel/core": "^7.26.0",
-    "@babel/eslint-parser": "^7.25.9",
+    "@babel/core": "7.26.0",
+    "@babel/eslint-parser": "7.25.9",
     "@ember/optional-features": "2.0.0",
-    "@ember/string": "^4.0.0",
+    "@ember/string": "4.0.0",
     "@ember/test-helpers": "2.9.3",
     "@glimmer/component": "^1.1.2",
     "@glimmer/syntax": "0.84.3",
     "@glimmer/syntax-0.35.11": "npm:@glimmer/[email protected]",
     "@glimmer/syntax-0.37.1": "npm:@glimmer/[email protected]",
     "@glimmer/syntax-0.40.1": "npm:@glimmer/[email protected]",
     "@glimmer/syntax-0.62.5": "npm:@glimmer/[email protected]",
-    "ember-auto-import": "^2.8.1",
+    "ember-auto-import": "2.8.1",
     "ember-cli": "4.10.0",
     "ember-cli-babel": "7.26.11",
     "ember-cli-chai": "0.5.0",
@@ -55,13 +55,13 @@
     "ember-qunit": "6.0.0",
     "ember-resolver": "8.1.0",
     "ember-source": "4.12.0",
-    "ember-try": "^3.0.0",
+    "ember-try": "3.0.0",
     "eslint": "8.40.0",
     "eslint-config-simplabs": "0.4.0",
     "jest": "28.1.3",
     "lerna-changelog": "2.2.0",
     "loader.js": "4.7.0",
-    "prettier": "^2.0.0",
+    "prettier": "2.8.8",
     "qunit": "2.19.4",
     "webpack": "5.82.1"
   },