perf(install-e2e): 60-minute job caps; 35-minute updater wait

The slowest green leg ever recorded is 29 minutes; every cap hit in the
suite's history was a hang, never work. Caps were linux 75 / macos 120 /
windows 240, so a wedged leg burned up to 4 hours of runner time to
report what its log showed in the first minutes. 60 minutes covers the
slowest leg plus cold-cache variance, and every driver-internal bound
(dmg install 45m, AHK 50m, updater wait) still fires before the job cap
in any single-hang scenario, keeping failure diagnostics specific.

The detached-updater wait drops 90m -> 35m on the same evidence: a
working updater finishes far inside 35m; a wedged one never finishes at
any bound, and the longer wait only delayed the report by an hour.

.github/workflows/install-e2e-macos-run.yml

@@ -51,7 +51,7 @@ on:
         description: 'Job timeout. App-update legs do a full Electron build.'
         required: false
         type: number
-        default: 120
+        default: 60
 
 permissions:
   contents: read

.github/workflows/install-e2e-run.yml

@@ -68,7 +68,7 @@ on:
         description: 'Job timeout. A cold run installs real toolchains twice, and app-update legs add a full Electron build + launch.'
         required: false
         type: number
-        default: 75
+        default: 60
 
 permissions:
   contents: read

.github/workflows/install-e2e-windows-run.yml

@@ -76,7 +76,7 @@ on:
         description: 'Job timeout. The install leg does real toolchain work and the update leg a full Electron rebuild.'
         required: false
         type: number
-        default: 240
+        default: 60
 
 permissions:
   contents: read