Upgrade gcc CI to use gcc13 (#86051)

* Upgrade gcc CI to use gcc13

* Fix a Wstrict-prototypes

Author: am11

eng/pipelines/common/platform-matrix.yml

@@ -348,7 +348,7 @@ jobs:
       targetRid: linux-x64
       platform: linux_x64
       shouldContinueOnError: ${{ parameters.shouldContinueOnError }}
-      container: debian-11-gcc12-amd64
+      container: debian-12-gcc13-amd64
       jobParameters:
         runtimeFlavor: ${{ parameters.runtimeFlavor }}
         buildConfig: ${{ parameters.buildConfig }}

eng/pipelines/common/templates/pipeline-with-resources.yml

@@ -74,8 +74,8 @@ resources:
       env:
         ROOTFS_DIR: /crossrootfs/riscv64
 
-    - container: debian-11-gcc12-amd64
-      image: mcr.microsoft.com/dotnet-buildtools/prereqs:debian-11-gcc12-amd64
+    - container: debian-12-gcc13-amd64
+      image: mcr.microsoft.com/dotnet-buildtools/prereqs:debian-12-gcc13-amd64
 
     - container: linux_x64_llvmaot
       image: mcr.microsoft.com/dotnet-buildtools/prereqs:centos-stream8

src/mono/mono/sgen/sgen-gc.c

@@ -4070,7 +4070,7 @@ guint64 memory_pressure_removes[MEM_PRESSURE_COUNT] = {0, 0, 0, 0};   // history
 const unsigned min_memorypressure_budget = 4 * 1024 * 1024;		// 4 MB
 
 // Resets pressure accounting after a gen2 GC has occurred.
-static void check_pressure_counts ()
+static void check_pressure_counts (void)
 {
 	if (memory_pressure_gc_count != sgen_gc_collection_count(GENERATION_OLD)) {
 		memory_pressure_gc_count = sgen_gc_collection_count(GENERATION_OLD);