chore(deps): update dependency @testing-library/dom to v8.20.0 (#3100)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
|
[@testing-library/dom](https://togithub.com/testing-library/dom-testing-library)
| [`8.19.1` ->
`8.20.0`](https://renovatebot.com/diffs/npm/@testing-library%2fdom/8.19.1/8.20.0)
|
[![age](https://badges.renovateapi.com/packages/npm/@testing-library%2fdom/8.20.0/age-slim)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://badges.renovateapi.com/packages/npm/@testing-library%2fdom/8.20.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://badges.renovateapi.com/packages/npm/@testing-library%2fdom/8.20.0/compatibility-slim/8.19.1)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://badges.renovateapi.com/packages/npm/@testing-library%2fdom/8.20.0/confidence-slim/8.19.1)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>testing-library/dom-testing-library</summary>

###
[`v8.20.0`](https://togithub.com/testing-library/dom-testing-library/releases/tag/v8.20.0)

[Compare
Source](https://togithub.com/testing-library/dom-testing-library/compare/v8.19.1...v8.20.0)

##### Features

- add offline/online events
([#&#8203;1205](https://togithub.com/testing-library/dom-testing-library/issues/1205))
([0ce0c70](0ce0c7054d))

</details>

---

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frontend/package.json

@@ -39,7 +39,7 @@
     "@mui/icons-material": "5.11.0",
     "@mui/lab": "5.0.0-alpha.119",
     "@mui/material": "5.11.8",
-    "@testing-library/dom": "8.19.1",
+    "@testing-library/dom": "8.20.0",
     "@testing-library/jest-dom": "5.16.5",
     "@testing-library/react": "12.1.5",
     "@testing-library/react-hooks": "7.0.2",

frontend/yarn.lock

@@ -2253,21 +2253,7 @@
     "@svgr/hast-util-to-babel-ast" "^6.5.1"
     svg-parser "^2.0.4"
 
-"@testing-library/dom@8.19.1":
+"@testing-library/dom@8.20.0", "@testing-library/dom@^8.0.0":
-  version "8.19.1"
-  resolved "https://registry.yarnpkg.com/@testing-library/dom/-/dom-8.19.1.tgz#0e2dafd281dedb930bb235eac1045470b4129d0e"
-  integrity sha512-P6iIPyYQ+qH8CvGauAqanhVnjrnRe0IZFSYCeGkSRW9q3u8bdVn2NPI+lasFyVsEQn1J/IFmp5Aax41+dAP9wg==
-  dependencies:
-    "@babel/code-frame" "^7.10.4"
-    "@babel/runtime" "^7.12.5"
-    "@types/aria-query" "^5.0.1"
-    aria-query "^5.0.0"
-    chalk "^4.1.0"
-    dom-accessibility-api "^0.5.9"
-    lz-string "^1.4.4"
-    pretty-format "^27.0.2"
-
-"@testing-library/dom@^8.0.0":
   version "8.20.0"
   resolved "https://registry.yarnpkg.com/@testing-library/dom/-/dom-8.20.0.tgz#914aa862cef0f5e89b98cc48e3445c4c921010f6"
   integrity sha512-d9ULIT+a4EXLX3UU8FBjauG9NnsZHkHztXoIcTsOKoOw030fyjheN9svkTULjJxtYag9DZz5Jz5qkWZDPxTFwA==