Update GNOME runtime to 48

Author: ryonakano

.github/workflows/flatpak.yml

@@ -6,9 +6,9 @@ name: CI
 jobs:
   flatpak-builder:
     name: "Flatpak Builder"
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     container:
-      image: bilelmoussaoui/flatpak-github-actions:elementary-juno
+      image: ghcr.io/flathub-infra/flatpak-github-actions:gnome-48
       options: --privileged
     steps:
       - uses: actions/checkout@v4

build-aux/com.github.alecaddd.sequeler.json

@@ -1,10 +1,10 @@
 {
   "id": "com.github.alecaddd.sequeler",
   "runtime": "org.gnome.Platform",
-  "runtime-version": "46",
+  "runtime-version": "48",
   "sdk": "org.gnome.Sdk",
   "base": "io.elementary.BaseApp",
-  "base-version": "juno-23.08",
+  "base-version": "circe-24.08",
   "command": "com.github.alecaddd.sequeler",
   "finish-args": [
     "--share=ipc",
@@ -32,7 +32,8 @@
       "build-options": {
         "config-opts": [
           "-Dgtk-doc=false"
-        ]
+        ],
+        "cflags": "-Wno-error=incompatible-pointer-types"
       },
       "sources": [{
         "type": "archive",
@@ -47,7 +48,8 @@
           "--with-java=no",
           "--with-jni=no",
           "--with-oracle=no"
-        ]
+        ],
+        "cflags": "-Wno-error=incompatible-pointer-types -Wno-error=implicit-function-declaration"
       },
       "sources": [{
         "type": "archive",
@@ -62,7 +64,8 @@
               "--with-perl=no",
               "--with-libxml",
               "--with-openssl"
-            ]
+            ],
+            "cflags": "-Wno-error=incompatible-pointer-types"
           },
           "sources": [{
             "type": "archive",