build: update project docs from dfinity/icp-js-signer@2759734 (#224)

This pull request was automatically created to update the project
documentation from
dfinity/icp-js-signer@2759734.

Co-authored-by: pr-automation-bot-public[bot] <189003650+pr-automation-bot-public[bot]@users.noreply.github.com>

Author: pr-automation-bot-public[bot]

public/signer/latest.zip

@@ -1,12 +1,12 @@
 [
   {
     "path": "latest",
-    "label": "Latest (v5.3.0)"
+    "label": "Latest (v5.3.1)"
   },
   {
     "path": "v5.3",
     "label": "v5.3",
-    "versionInTitle": "v5.3.0"
+    "versionInTitle": "v5.3.1"
   },
   {
     "path": "v5.2",