CI: bump maxrss for aarch64 linux

Reduced number of runners from 9 to 6.

This number is the total physical memory (251G) divided by the number of
runners we have active (6).

see previous commit 5b9e528bc5

ci/aarch64-linux-debug.sh

@@ -50,7 +50,7 @@ ninja install
 
 # No -fqemu and -fwasmtime here as they're covered by the x86_64-linux scripts.
 stage3-debug/bin/zig build test docs \
-  --maxrss 24696061952 \
+  --maxrss 44918199637 \
   -Dstatic-llvm \
   -Dtarget=native-native-musl \
   --search-prefix "$PREFIX" \

ci/aarch64-linux-release.sh

@@ -50,7 +50,7 @@ ninja install
 
 # No -fqemu and -fwasmtime here as they're covered by the x86_64-linux scripts.
 stage3-release/bin/zig build test docs \
-  --maxrss 24696061952 \
+  --maxrss 44918199637 \
   -Dstatic-llvm \
   -Dtarget=native-native-musl \
   --search-prefix "$PREFIX" \