chore(packages): Upgrade from pixelmatch 4.x to 5.x, and pngjs to 3.4

Author: ReDrUm

README.md

@@ -75,7 +75,7 @@ Thanks `jest-image-snapshot`, that broken header would not have looked good in p
 npm i --save-dev jest-image-snapshot
 ```
 
-Please note that `Jest` `>=20 <=24` is a peerDependency. `jest-image-snapshot` will **not** work with anything below Jest 20.x.x
+Please note that `Jest` `>=20 <=25` is a peerDependency. `jest-image-snapshot` will **not** work with anything below Jest 20.x.x
 
 ### Invocation
 

__tests__/integration.spec.js

@@ -168,7 +168,7 @@ describe('toMatchImageSnapshot', () => {
     const biggerImageData = fs.readFileSync(fromStubs('TestImage150x150.png'));
 
     it('fails for a different snapshot', () => {
-      const expectedError = /^Expected image to match or be a close match to snapshot but was 86\.55000000000001% different from snapshot \(8655 differing pixels\)\./;
+      const expectedError = /^Expected image to match or be a close match to snapshot but was 86\.45% different from snapshot \(8645 differing pixels\)\./;
       const customSnapshotIdentifier = getIdentifierIndicatingCleanupIsRequired();
 
       // Write a new snapshot image

package.json

@@ -46,11 +46,11 @@
   "devDependencies": {
     "@commitlint/cli": "^8.3.5",
     "@commitlint/config-conventional": "^8.3.4",
-    "amex-jest-preset": "^5.0.0",
+    "amex-jest-preset": "^6.0.1",
     "eslint": "^6.8.0",
     "eslint-config-amex": "^7.0.0",
     "husky": "^4.2.1",
-    "image-size": "^0.7.1",
+    "image-size": "^0.8.3",
     "jest": "^25.1.0",
     "jest-snapshot": "^25.1.0",
     "lockfile-lint": "^4.0.0",
@@ -62,8 +62,8 @@
     "glur": "^1.1.2",
     "lodash": "^4.17.4",
     "mkdirp": "^0.5.1",
-    "pixelmatch": "^4.0.2",
-    "pngjs": "^3.3.3",
+    "pixelmatch": "^5.1.0",
+    "pngjs": "^3.4.0",
     "rimraf": "^2.6.2"
   },
   "peerDependencies": {