Update dependency postcss to v8.4.36 (mastodon#29628)

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

yarn.lock

@@ -13071,13 +13071,13 @@ __metadata:
   linkType: hard
 
 "postcss@npm:^8.2.15, postcss@npm:^8.4.24, postcss@npm:^8.4.33":
-  version: 8.4.35
-  resolution: "postcss@npm:8.4.35"
+  version: 8.4.36
+  resolution: "postcss@npm:8.4.36"
   dependencies:
     nanoid: "npm:^3.3.7"
     picocolors: "npm:^1.0.0"
-    source-map-js: "npm:^1.0.2"
-  checksum: 10c0/e8dd04e48001eb5857abc9475365bf08f4e508ddf9bc0b8525449a95d190f10d025acebc5b56ac2e94b3c7146790e4ae78989bb9633cb7ee20d1cc9b7dc909b2
+    source-map-js: "npm:^1.1.0"
+  checksum: 10c0/e7c834e31d8f4e8dfd0a427df36fdc7bdc58a16e373551618e2c3ac172019eb816b24f1b4709311ebcade8d3ba31b2d75522d28ef45ecbbeb11eb01f265579fb
   languageName: node
   linkType: hard
 
@@ -15018,10 +15018,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"source-map-js@npm:>=0.6.2 <2.0.0, source-map-js@npm:^1.0.1, source-map-js@npm:^1.0.2":
-  version: 1.0.2
-  resolution: "source-map-js@npm:1.0.2"
-  checksum: 10c0/32f2dfd1e9b7168f9a9715eb1b4e21905850f3b50cf02cf476e47e4eebe8e6b762b63a64357896aa29b37e24922b4282df0f492e0d2ace572b43d15525976ff8
+"source-map-js@npm:>=0.6.2 <2.0.0, source-map-js@npm:^1.0.1, source-map-js@npm:^1.1.0":
+  version: 1.1.0
+  resolution: "source-map-js@npm:1.1.0"
+  checksum: 10c0/d1f016efe4fcf67fd92e36da0670f2889b13a36cc453329758336450e811c61164376eb451b453b4dd4e89a760f841b0a014942d54f240af31a791829bc0e336
   languageName: node
   linkType: hard