Don't include submodule for one Linux workflow.

This is needed for the same reason that the submodules are not
included in the static checks workflow, as the commit that includes
the submodule is labeled as "dirty".

.github/workflows/linux_builds.yml

@@ -28,6 +28,7 @@ jobs:
             bin: "./bin/godot.x11.opt.tools.64.mono"
             build-mono: true
             artifact: true
+            submodules: recursive
 
           - name: Editor and sanitizers (target=debug, tools=yes, use_asan=yes, use_ubsan=yes, linker=gold)
             cache-name: linux-editor-sanitizers
@@ -39,6 +40,7 @@ jobs:
             build-mono: false
             # Skip 2GiB artifact speeding up action.
             artifact: false
+            submodules: false
 
           - name: Template w/ Mono (target=release, tools=no)
             cache-name: linux-template-mono
@@ -47,6 +49,7 @@ jobs:
             sconsflags: module_mono_enabled=yes mono_static=yes mono_glue=no debug_symbols=no
             build-mono: false
             artifact: true
+            submodules: recursive
 
           - name: Minimal template (target=release, tools=no, everything disabled)
             cache-name: linux-template-minimal
@@ -55,11 +58,12 @@ jobs:
             sconsflags: modules_enabled_by_default=no disable_3d=yes disable_advanced_gui=yes deprecated=no minizip=no debug_symbols=no
             build-mono: false
             artifact: false
+            submodules: recursive
 
     steps:
       - uses: actions/checkout@v4
         with:
-          submodules: recursive
+          submodules: ${{ matrix.submodules }}
 
       - name: Linux dependencies
         shell: bash