Bump matrix-js-sdk from 20.1.0 to 21.0.1 (#959)

* Bump matrix-js-sdk from 20.1.0 to 21.0.0

Bumps [matrix-js-sdk](https://github.com/matrix-org/matrix-js-sdk) from 20.1.0 to 21.0.0.
- [Release notes](https://github.com/matrix-org/matrix-js-sdk/releases)
- [Changelog](https://github.com/matrix-org/matrix-js-sdk/blob/develop/CHANGELOG.md)
- [Commits](https://github.com/matrix-org/matrix-js-sdk/compare/v20.1.0...v21.0.0)

---
updated-dependencies:
- dependency-name: matrix-js-sdk
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

* Bump matrix-js-sdk from 20.1.0 to 21.0.1

Bumps [matrix-js-sdk](https://github.com/matrix-org/matrix-js-sdk) from 20.1.0 to 21.0.1.
- [Release notes](https://github.com/matrix-org/matrix-js-sdk/releases)
- [Changelog](https://github.com/matrix-org/matrix-js-sdk/blob/develop/CHANGELOG.md)
- [Commits](https://github.com/matrix-org/matrix-js-sdk/compare/v20.1.0...v21.0.1)

---
updated-dependencies:
- dependency-name: matrix-js-sdk
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

* Fix upload content

* Change min supported node

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Ajay Bura <32841439+ajbura@users.noreply.github.com>

package.json

@@ -4,8 +4,7 @@
   "description": "Yet another matrix client",
   "main": "index.js",
   "engines": {
-    "npm": ">=6.14.8",
-    "node": ">=14.15.0"
+    "node": ">=16.0.0"
   },
   "scripts": {
     "start": "webpack serve --config ./webpack.dev.js --open",
@@ -32,7 +31,7 @@
     "katex": "0.16.3",
     "linkify-html": "4.0.2",
     "linkifyjs": "4.0.2",
-    "matrix-js-sdk": "20.1.0",
+    "matrix-js-sdk": "21.0.1",
     "prop-types": "15.8.1",
     "react": "17.0.2",
     "react-autosize-textarea": "7.1.0",