chore(deps): update sched_ext/for-next kernel

The commit list is available at: https://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext.git/log/?qt=range&q=3445c57d73330a05e4a0b88f87ab3ccddac7f708..07676846132340c7d0f50eca189a24cea4ae3cd8

CI-Test-Kernel: sched_ext/for-next

Author: scx-ci-bot

kernel-versions.json

@@ -2,10 +2,10 @@
   "sched_ext/for-next": {
     "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext.git",
     "branch": "for-next",
-    "commitHash": "3445c57d73330a05e4a0b88f87ab3ccddac7f708",
-    "lastModified": 1770353944,
-    "narHash": "sha256-padSJjUZssdWJw7KHjVJMnQAG5SaPOOZ/CtUYG00Mpg=",
-    "kernelVersion": "6.18.0"
+    "commitHash": "07676846132340c7d0f50eca189a24cea4ae3cd8",
+    "lastModified": 1771391202,
+    "narHash": "sha256-G+Ktyx5l5u1zOG1yihY+gOR3hpBpuDlaUA8fj6nroSY=",
+    "kernelVersion": "6.19.0"
   },
   "bpf/bpf-next": {
     "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git",