* Upstream dev channel update: 88.0.4292.2
* debian/rules: build with use_allocator_shim=false to replace the default-allocator patch
* debian/patches/closure-compiler-java-no-client-vm.patch: refreshed
* debian/patches/default-allocator: removed, no longer needed
* debian/patches/fix-ptrace-header-include.patch: refreshed
* debian/patches/set-rpath-on-chromium-executables.patch: refreshed
* debian/patches/stl-util-old-clang-compatibility.patch: refreshed
* debian/patches/suppress-newer-clang-warning-flags.patch: refreshed
* debian/patches/title-bar-default-system.patch-v35: refreshed