chore(deps): pin dependencies (#12)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

package.json

@@ -7,25 +7,25 @@
   "license": "MIT",
   "keywords": [],
   "dependencies": {
-    "@prisma/client": "^2.12.1",
-    "apollo-server": "^2.19.0",
-    "graphql": "^15.4.0",
-    "nexus": "^1.0.0",
+    "@prisma/client": "2.12.1",
+    "apollo-server": "2.19.0",
+    "graphql": "15.4.0",
+    "nexus": "1.0.0",
     "nexus-plugin-prisma": "0.10.0"
   },
   "devDependencies": {
-    "@prisma/cli": "^2.12.1",
-    "@types/jest": "^25.2.3",
-    "@types/pg": "^7.14.7",
-    "get-port": "^5.1.1",
-    "graphql-request": "^3.3.0",
-    "jest": "^25.5.4",
-    "nanoid": "^3.1.10",
-    "pg": "^8.5.1",
-    "prettier": "^2.0.5",
-    "ts-jest": "^25.5.1",
-    "ts-node-dev": "^1.0.0",
-    "typescript": "^4.1.2"
+    "@prisma/cli": "2.12.1",
+    "@types/jest": "25.2.3",
+    "@types/pg": "7.14.7",
+    "get-port": "5.1.1",
+    "graphql-request": "3.3.0",
+    "jest": "25.5.4",
+    "nanoid": "3.1.10",
+    "pg": "8.5.1",
+    "prettier": "2.0.5",
+    "ts-jest": "25.5.1",
+    "ts-node-dev": "1.0.0",
+    "typescript": "4.1.2"
   },
   "prettier": {
     "singleQuote": true,