release: 4.7.0 (#5546)

* docs: update MAINTAINING

* refactor: use branch name in release-prep

This makes a minor improvement to the `release-prep.sh` script to grab
the version to update to from the branch name.

* chore(release): bump version to 4.7.0

* fixup: bump version

* docs: use latest instead of version

* fixup: bump Chart version

* chore: update CHANGELOG

* chore: add license to test package.json

* chore: bump @coder/logging to 3.0.0

* fix: change level to Warn

package.json

@@ -1,7 +1,7 @@
 {
   "name": "code-server",
   "license": "MIT",
-  "version": "4.6.1-1",
+  "version": "4.7.0",
   "description": "Run VS Code on a remote server.",
   "homepage": "https://github.com/coder/code-server",
   "bugs": {
@@ -87,7 +87,7 @@
     "@types/node": "^16.0.0"
   },
   "dependencies": {
-    "@coder/logger": "1.1.16",
+    "@coder/logger": "^3.0.0",
     "argon2": "^0.29.0",
     "compression": "^1.7.4",
     "cookie-parser": "^1.4.5",