Update tools/package.json dependencies, remove imagemin-zopfli (go-gitea#35406)

imagemin-zopfli brings a lot of [vulnerable
dependencies](https://github.com/go-gitea/gitea/security/dependabot) and
it is unmaintained. The removal brings a size increase to these images,
but I think ultimately this size does not matter enough. I verified this
passes `pnpm audit` now.

Author: silverwind

public/assets/img/apple-touch-icon.png

@@ -1,5 +1,4 @@
 #!/usr/bin/env node
-import imageminZopfli from 'imagemin-zopfli'; // eslint-disable-line import-x/no-unresolved
 import {loadSVGFromString, Canvas, Rect, util} from 'fabric/node'; // eslint-disable-line import-x/no-unresolved
 import {optimize} from 'svgo';
 import {readFile, writeFile} from 'node:fs/promises';
@@ -52,7 +51,6 @@ async function generate(svg, path, {size, bg}) {
     png = Buffer.concat([png, chunk]);
   }
 
-  png = await imageminZopfli({more: true})(png);
   await writeFile(outputFile, png);
 }
 

public/assets/img/avatar_default.png

@@ -5,18 +5,17 @@
   "type": "module",
   "private": true,
   "dependencies": {
-    "fabric": "^6.0.0",
-    "imagemin-zopfli": "^7.0.0",
-    "svgo": "^3.0.0",
-    "fast-glob": "^3.0.0"
+    "fabric": "^6.7.1",
+    "svgo": "^4.0.0",
+    "fast-glob": "^3.3.3"
   },
   "optionalDependencies": {
     "canvas": "^3.2.0"
   },
   "pnpm": {
-    "onlyBuiltDependencies": ["canvas", "zopflipng-bin"],
+    "onlyBuiltDependencies": ["canvas"],
     "overrides": {
       "canvas": "3.2.0"
     }
   }
-}
+}