chore: upgrade linter to 11.1.2 and fix lint issues

package.json

@@ -29,7 +29,7 @@
     "reading-time": "1.3.0",
     "rehype-autolink-headings": "^6.0.0",
     "rehype-katex": "^6.0.0",
-    "rehype-prism-plus": "^0.0.6",
+    "rehype-prism-plus": "^0.1.0",
     "rehype-slug": "^5.0.0",
     "remark-footnotes": "^4.0.0",
     "remark-gfm": "^2.0.0",
@@ -44,7 +44,7 @@
     "cross-env": "^7.0.3",
     "dedent": "^0.7.0",
     "eslint": "^7.29.0",
-    "eslint-config-next": "11.1.0",
+    "eslint-config-next": "11.1.2",
     "eslint-config-prettier": "^8.3.0",
     "eslint-plugin-jsx-a11y": "^6.4.1",
     "eslint-plugin-prettier": "^3.3.1",