chore(deps): update dependency tsup to ^8.4.0 (#1397)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

packages/rehype-meta-as-attributes/package.json

@@ -22,7 +22,7 @@
     "unist-util-visit": "^5.0.0"
   },
   "devDependencies": {
-    "tsup": "^8.3.6",
+    "tsup": "^8.4.0",
     "unified": "^11.0.5"
   },
   "bugs": {

packages/themes-utils/package.json

@@ -23,7 +23,7 @@
   },
   "devDependencies": {
     "@types/lodash.kebabcase": "^4.1.9",
-    "tsup": "^8.3.6"
+    "tsup": "^8.4.0"
   },
   "bugs": {
     "url": "https://github.com/LekoArts/gatsby-themes/issues"