Bump clipboard from 2.0.10 to 2.0.11

Bumps [clipboard](https://github.com/zenorocha/clipboard.js) from 2.0.10 to 2.0.11.
- [Release notes](https://github.com/zenorocha/clipboard.js/releases)
- [Commits](https://github.com/zenorocha/clipboard.js/compare/v2.0.10...v2.0.11)

---
updated-dependencies:
- dependency-name: clipboard
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

package.json

@@ -70,7 +70,7 @@
   },
   "dependencies": {
     "annotator": "wallabag/annotator#master",
-    "clipboard": "^2.0.10",
+    "clipboard": "^2.0.11",
     "hammerjs": "^2.0.8",
     "highlight.js": "^11.5.1",
     "icomoon-free-npm": "^0.0.0",