Bump xterm-addon-webgl from 0.15.0-beta.15 to 0.16.0-beta.6

Bumps [xterm-addon-webgl](https://github.com/xtermjs/xterm.js) from 0.15.0-beta.15 to 0.16.0-beta.6.
- [Release notes](https://github.com/xtermjs/xterm.js/releases)
- [Commits](https://github.com/xtermjs/xterm.js/commits)

---
updated-dependencies:
- dependency-name: xterm-addon-webgl
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

package.json

@@ -57,7 +57,7 @@
     "xterm-addon-fit": "^0.7.0",
     "xterm-addon-ligatures": "^0.7.0-beta.1",
     "xterm-addon-web-links": "^0.9.0-beta.1",
-    "xterm-addon-webgl": "^0.15.0-beta.1"
+    "xterm-addon-webgl": "^0.16.0-beta.6"
   },
   "devDependencies": {
     "@npezza93/spectron": "^24.0.0",

yarn.lock

@@ -3084,10 +3084,10 @@ xterm-addon-web-links@^0.9.0-beta.1:
   resolved "https://registry.yarnpkg.com/xterm-addon-web-links/-/xterm-addon-web-links-0.9.0-beta.1.tgz#0aa84c4bdb4cce5c4098fd1e9fdd6b4eba2605a5"
   integrity sha512-h9hr4KZI2XYUuuxgRtR8Cd9Pj3nzR+kts55bsuiY7eW5Wsm4Bo/YUmnaYR0XiCaw3I2gl9E6oZ70vJle0ZBnrQ==
 
-xterm-addon-webgl@^0.15.0-beta.1:
-  version "0.15.0-beta.15"
-  resolved "https://registry.yarnpkg.com/xterm-addon-webgl/-/xterm-addon-webgl-0.15.0-beta.15.tgz#bc9422425c27ebd86059f6b2465f01c5ec07071a"
-  integrity sha512-0zFn6Fsvo7jbSWO2TwNUHlAoceWWb2EYI/SgxN+H6+4kpUV1clP53pTQBdUpAtPEjJsVgxERqOPKBFu14TnR0w==
+xterm-addon-webgl@^0.16.0-beta.6:
+  version "0.16.0-beta.6"
+  resolved "https://registry.yarnpkg.com/xterm-addon-webgl/-/xterm-addon-webgl-0.16.0-beta.6.tgz#5f8a598081a117dec15b4ead8160bf8e972fbfd0"
+  integrity sha512-bRFahQyVuiRmeakLzTrs3V3KSWBDOcePfT/Q7dwWfh8NPpilg6/Zm04ijq99Nsg1AYbfNWh+P05Myppa8uimCA==
 
 xterm@^5.2.0-beta.49:
   version "5.2.0-beta.49"