chore(versions.txt): update Erlang/OTP version file

Author: github-actions[bot]

assets/erlang_otp_versions_from_gtihub_api.json

@@ -69,6 +69,16 @@
         },
         "node_id": "MDM6UmVmMzc0OTI3OnJlZnMvdGFncy9PVFAtMjkuMC1yYzE="
     },
+    {
+        "name": "OTP-28.4",
+        "zipball_url": "https://api.github.com/repos/erlang/otp/zipball/refs/tags/OTP-28.4",
+        "tarball_url": "https://api.github.com/repos/erlang/otp/tarball/refs/tags/OTP-28.4",
+        "commit": {
+            "sha": "927bcc220b923ba1fef574618e82a3b7a2a4471d",
+            "url": "https://api.github.com/repos/erlang/otp/commits/927bcc220b923ba1fef574618e82a3b7a2a4471d"
+        },
+        "node_id": "MDM6UmVmMzc0OTI3OnJlZnMvdGFncy9PVFAtMjguNA=="
+    },
     {
         "name": "OTP-28.3.3",
         "zipball_url": "https://api.github.com/repos/erlang/otp/zipball/refs/tags/OTP-28.3.3",

assets/macos_prebuilt_versions.txt

@@ -5,6 +5,7 @@ maint-27-latest
 maint-26-latest
 maint-25-latest
 29.0-rc1
+28.4
 28.3.3
 28.3.2
 28.3.1

assets/prebuilt_versions.txt

@@ -13,6 +13,7 @@ maint-18
 maint-17
 maint
 OTP-29.0-rc1
+OTP-28.4
 OTP-28.3.3
 OTP-28.3.2
 OTP-28.3.1

assets/versions.txt

@@ -1,4 +1,5 @@
 29.0-rc1
+28.4
 28.3.3
 28.3.2
 28.3.1