update libslirp version

contrib/linux/com.dosbox_x.DOSBox-X-sdl2.yaml

@@ -9,7 +9,7 @@ finish-args: # flatpak permissions
   - --device=all # needed for gamepads and serial/parallel
   - --share=ipc	 # needed for X11
   - --share=network # needed for networking (NE2000, IPX)
-  - --socket=x11
+  - --socket=x11 # default to X11 due to FS issues
   - --socket=pulseaudio
   - --filesystem=home
 
@@ -55,15 +55,20 @@ modules:
         sha256: b539b7c65a650b56f01cd60a4e83c6125c217c5a63c0c214ef6274894a677d00
 
 # Build libslirp for networking
-  - name: libslirp
+- name: libslirp
     buildsystem: meson
     cleanup:
       - "/include"
       - "/lib/pkgconfig"
     sources:
-      - type: archive
-        url: https://gitlab.freedesktop.org/slirp/libslirp/uploads/a30aeca3c6ad23f176065d0ee832957b/libslirp-4.4.0.tar.xz
-        sha256: e903fc14c26030b51711bd7f098697c2393f237199e3681c2e22ea013c3635a7
+      - type: git
+        url: https://gitlab.freedesktop.org/slirp/libslirp
+        tag: "v4.6.1"
+    x-checker-data:
+          type: anitya
+          project-id: 96796
+          stable-only: true
+          tag-template: v$version
 
 # Build DOSBox-X SDL2
   - name: dosbox-x

contrib/linux/com.dosbox_x.DOSBox-X.yaml

@@ -55,15 +55,20 @@ modules:
         sha256: b539b7c65a650b56f01cd60a4e83c6125c217c5a63c0c214ef6274894a677d00
 
 # Build libslirp for networking
-  - name: libslirp
+- name: libslirp
     buildsystem: meson
     cleanup:
       - "/include"
       - "/lib/pkgconfig"
     sources:
-      - type: archive
-        url: https://gitlab.freedesktop.org/slirp/libslirp/uploads/a30aeca3c6ad23f176065d0ee832957b/libslirp-4.4.0.tar.xz
-        sha256: e903fc14c26030b51711bd7f098697c2393f237199e3681c2e22ea013c3635a7
+      - type: git
+        url: https://gitlab.freedesktop.org/slirp/libslirp
+        tag: "v4.6.1"
+    x-checker-data:
+          type: anitya
+          project-id: 96796
+          stable-only: true
+          tag-template: v$version
 
 # Build DOSBox-X SDL1
   - name: dosbox-x