Bump psutil from 5.9.8 to 7.1.2 in /tools

Bumps [psutil](https://github.com/giampaolo/psutil) from 5.9.8 to 7.1.2.
- [Changelog](https://github.com/giampaolo/psutil/blob/master/HISTORY.rst)
- [Commits](giampaolo/psutil@release-5.9.8...release-7.1.2)

---
updated-dependencies:
- dependency-name: psutil
  dependency-version: 7.1.2
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

tools/wptrunner/requirements_firefox.txt

@@ -6,6 +6,6 @@ mozleak==0.2
 mozprofile==3.0.0
 mozrunner==8.3.2
 mozversion==2.4.0
-psutil==5.9.8
+psutil==7.1.2
 types-psutil==6.1.0.20241221
 redo==3.0.0

tools/wptrunner/requirements_safari.txt

@@ -1,2 +1,2 @@
-psutil==5.9.8
+psutil==7.1.2
 types-psutil==6.1.0.20241221