[Snyk] Security upgrade webpack from 2.7.0 to 5.0.0

[kmaida]

This PR was automatically created by Snyk using the credentials of a real user.

Snyk has created this PR to fix one or more vulnerable packages in the `npm` dependencies of this project.

#### Changes included in this PR - Changes to the following files to upgrade the vulnerable dependencies to a fixed version: - demo/package.json - demo/package-lock.json #### Vulnerabilities that will be fixed ##### With an upgrade: Severity | Priority Score (*) | Issue | Breaking Change | Exploit Maturity :-------------------------:|-------------------------|:-------------------------|:-------------------------|:-------------------------  | **661/1000**
**Why?** Recently disclosed, Has a fix available, CVSS 7.5 | Prototype Pollution
[SNYK-JS-LOADERUTILS-3043105](https://snyk.io/vuln/SNYK-JS-LOADERUTILS-3043105) | Yes | No Known Exploit (*) Note that the real score may have changed since the PR was raised.

Commit messages

Package name: webpack

The new version differs by 250 commits.

• 610f368 5.0.0
• 5ce65c1 update examples
• bbe1230 Merge pull request #11628 from webpack/bugfix/real-content-hash
• 75ecff2 5.0.0-rc.6
• bfc35d6 Merge pull request #11603 from MayaWolf/master
• 76e8cbd Merge pull request #11622 from webpack/dependabot/npm_and_yarn/types/node-13.13.25
• 9fd1be2 chore(deps-dev): bump @ types/node from 13.13.23 to 13.13.25
• 36bcfaa Merge pull request #11621 from webpack/bugfix/11619
• 9130d10 fix called variables with ProvidePlugin
• 3e42105 Merge pull request #11620 from webpack/bugfix/11617
• 4709719 skip connections copied to concatenated module
• 57b493f 5.0.0-rc.5
• 1658e2f Merge pull request #11618 from webpack/bugfix/11615
• a8fb45d fixes crash in SideEffectsFlagPlugin
• 84b196d emit error instead of crashing when unexpected problem occurs
• 5573fed Merge pull request #11601 from Hornwitser/improve-suggested-polyfill-config
• 9b5cce9 Merge pull request #11609 from snitin315/export-types
• 37c495c export type RuleSetUseItem
• 39faf34 export type RuleSetUse
• e5fd246 export type RuleSetConditionAbsolute
• 660baad export RuleSetCondition types
• 13e3ca5 Merge pull request #11602 from webpack/bugfix/shared-runtime-chunk
• 9c0587e Merge pull request #11606 from webpack/dependabot/npm_and_yarn/simple-git-2.21.0
• 502d166 Merge pull request #11607 from webpack/dependabot/npm_and_yarn/acorn-8.0.4

See the full diff

Check the changes in this PR to ensure they won't cause issues with your project. ------------ **Note:** *You are seeing this because you or someone else with access to this repository has authorized Snyk to open fix PRs.* For more information: 🧐 [View latest project report](https://app.snyk.io/org/kim.maida/project/0521d044-bc71-40e1-9cb6-a0a1b5850079?utm_source=github&utm_medium=referral&page=fix-pr) 🛠 [Adjust project settings](https://app.snyk.io/org/kim.maida/project/0521d044-bc71-40e1-9cb6-a0a1b5850079?utm_source=github&utm_medium=referral&page=fix-pr/settings) 📚 [Read more about Snyk's upgrade and patch logic](https://support.snyk.io/hc/en-us/articles/360003891078-Snyk-patches-to-fix-vulnerabilities) [//]: # (snyk:metadata:{"prId":"755dcbb6-88fd-4090-a379-522a4a528e58","prPublicId":"755dcbb6-88fd-4090-a379-522a4a528e58","dependencies":[{"name":"webpack","from":"2.7.0","to":"5.0.0"}],"packageManager":"npm","projectPublicId":"0521d044-bc71-40e1-9cb6-a0a1b5850079","projectUrl":"https://app.snyk.io/org/kim.maida/project/0521d044-bc71-40e1-9cb6-a0a1b5850079?utm_source=github&utm_medium=referral&page=fix-pr","type":"auto","patch":[],"vulns":["SNYK-JS-LOADERUTILS-3043105"],"upgrade":["SNYK-JS-LOADERUTILS-3043105"],"isBreakingChange":true,"env":"prod","prType":"fix","templateVariants":["updated-fix-title","priorityScore"],"priorityScoreList":[661]}) --- **Learn how to fix vulnerabilities with free interactive lessons:** 🦉 [Prototype Pollution](https://learn.snyk.io/lessons/prototype-pollution/javascript//?loc=fix-pr)