chore(breaking): bump Jest to 26

Author: thymikee

__tests__/__snapshots__/snapshotDiff.test.js.snap

@@ -163,7 +163,7 @@ exports[`diffs short strings 1`] = `
 
 exports[`failed optional deps throws with sensible message on missing react-test-renderer 1`] = `
 "Failed to load optional module \\"react-test-renderer\\". If you need to compare React elements, please add \\"react-test-renderer\\" to your project's dependencies.
-Cannot find module 'non-existent-module-for-testing' from 'snapshotDiff.test.js'"
+Cannot find module 'non-existent-module-for-testing' from '__tests__/snapshotDiff.test.js'"
 `;
 
 exports[`shows diff when comparing React fragments of varying length 1`] = `

package.json

@@ -19,9 +19,9 @@
     "jest": ">=16"
   },
   "dependencies": {
-    "jest-diff": "^25.1.0",
-    "jest-snapshot": "^25.1.0",
-    "pretty-format": "^25.1.0"
+    "jest-diff": "^26.0.1",
+    "jest-snapshot": "^26.0.1",
+    "pretty-format": "^26.0.1"
   },
   "devDependencies": {
     "@babel/cli": "^7.7.0",
@@ -35,7 +35,7 @@
     "enzyme-to-json": "^3.4.0",
     "eslint": "^6.6.0",
     "flow-bin": "^0.123.0",
-    "jest": "^24.0.0",
+    "jest": "^26.0.1",
     "react": "^16.13.1",
     "react-dom": "16.13.1",
     "react-test-renderer": "^16.13.1"