Locked oz version, added prepack command, bumped to beta.5

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@pooltogether/v4-core",
-  "version": "1.0.0-beta.4",
+  "version": "1.0.0-beta.5",
   "description": "PoolTogether V4 Core Smart Contracts",
   "main": "index.js",
   "license": "GPL-3.0",
@@ -24,10 +24,11 @@
     "run-fork": "yarn impersonate-accounts && yarn distribute-ether && yarn create-prize-pool",
     "test": "HIDE_DEPLOY_LOG=true hardhat test",
     "gas": "REPORT_GAS=true HIDE_DEPLOY_LOG=true hardhat test",
-    "parallel-test": "mocha --require hardhat/register --recursive --parallel --exit --extension ts"
+    "parallel-test": "mocha --require hardhat/register --recursive --parallel --exit --extension ts",
+    "prepack": "yarn compile"
   },
   "dependencies": {
-    "@openzeppelin/contracts": "^4.3.1",
+    "@openzeppelin/contracts": "4.3.1",
     "@pooltogether/fixed-point": "1.0.0",
     "@pooltogether/owner-manager-contracts": "1.1.0",
     "@pooltogether/pooltogether-rng-contracts": "1.4.0",

yarn.lock

@@ -653,10 +653,10 @@
     widest-line "^3.1.0"
     wrap-ansi "^4.0.0"
 
-"@openzeppelin/contracts@^4.3.1":
-  version "4.3.2"
-  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.3.2.tgz#ff80affd6d352dbe1bbc5b4e1833c41afd6283b6"
-  integrity sha512-AybF1cesONZStg5kWf6ao9OlqTZuPqddvprc0ky7lrUVOjXeKpmQ2Y9FK+6ygxasb+4aic4O5pneFBfwVsRRRg==
+"@openzeppelin/[email protected]":
+  version "4.3.1"
+  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.3.1.tgz#c01f791ce6c9d3989ac1a643267501dbe336b9e3"
+  integrity sha512-QjgbPPlmDK2clK1hzjw2ROfY8KA5q+PfhDUUxZFEBCZP9fi6d5FuNoh/Uq0oCTMEKPmue69vhX2jcl0N/tFKGw==
 
 "@openzeppelin/[email protected]":
   version "1.6.0"