fix: [Snyk] Security upgrade video.js from 7.18.1 to 7.21.1 (#13973)

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### Snyk has created this PR to fix 1 vulnerabilities in the yarn
dependencies of this project.

#### Snyk changed the following file(s):

- `package.json`


#### Note for
[zero-installs](https://yarnpkg.com/features/zero-installs) users

If you are using the Yarn feature
[zero-installs](https://yarnpkg.com/features/zero-installs) that was
introduced in Yarn V2, note that this PR does not update the
`.yarn/cache/` directory meaning this code cannot be pulled and
immediately developed on as one would expect for a zero-install project
- you will need to run `yarn` to update the contents of the
`./yarn/cache` directory.
If you are not using zero-install you can ignore this as your flow
should likely be unchanged.



<details>
<summary>⚠️ <b>Warning</b></summary>

```
Failed to update the yarn.lock, please update manually before merging.
```

</details>



#### Vulnerabilities that will be fixed with an upgrade:

|  | Issue |  
:-------------------------:|:-------------------------
![high
severity](https://res.cloudinary.com/snyk/image/upload/w_20,h_20/v1561977819/icon/h.png
'high severity') | XML Injection
<br/>[SNYK-JS-XMLDOMXMLDOM-15869636](https://snyk.io/vuln/SNYK-JS-XMLDOMXMLDOM-15869636)




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[//]: #
'snyk:metadata:{"breakingChangeRiskLevel":null,"FF_showPullRequestBreakingChanges":false,"FF_showPullRequestBreakingChangesWebSearch":false,"customTemplate":{"variablesUsed":[],"fieldsUsed":[]},"dependencies":[{"name":"video.js","from":"7.18.1","to":"7.21.1"}],"env":"prod","issuesToFix":["SNYK-JS-XMLDOMXMLDOM-15869636","SNYK-JS-XMLDOMXMLDOM-15869636"],"prId":"a31a1fb5-a9f0-4513-9316-be8798abfd9c","prPublicId":"a31a1fb5-a9f0-4513-9316-be8798abfd9c","packageManager":"yarn","priorityScoreList":[null],"projectPublicId":"3ca3819e-26b5-4e23-ac65-184abd9a6f10","projectUrl":"https://app.snyk.io/org/chatwoot/project/3ca3819e-26b5-4e23-ac65-184abd9a6f10?utm_source=github&utm_medium=referral&page=fix-pr","prType":"fix","templateFieldSources":{"branchName":"default","commitMessage":"default","description":"default","title":"default"},"templateVariants":["updated-fix-title","pr-warning-shown"],"type":"auto","upgrade":["SNYK-JS-XMLDOMXMLDOM-15869636"],"vulns":["SNYK-JS-XMLDOMXMLDOM-15869636"],"patch":[],"isBreakingChange":false,"remediationStrategy":"vuln"}'

---------

Co-authored-by: snyk-bot <snyk-bot@snyk.io>
Co-authored-by: Sony Mathew <2040199+sony-mathew@users.noreply.github.com>

package.json

@@ -94,7 +94,7 @@
     "tinykeys": "^3.0.0",
     "turbolinks": "^5.2.0",
     "urlpattern-polyfill": "^10.0.0",
-    "video.js": "7.18.1",
+    "video.js": "7.21.1",
     "videojs-record": "4.5.0",
     "videojs-wavesurfer": "3.8.0",
     "virtua": "^0.48.6",