fix(deps): patch execa to use signal-exit 4.1.0 API

- Created patch for execa@5.1.1 to use signal-exit v4 named exports
- Restored signal-exit 4.1.0 override in pnpm overrides
- Fixes dotenvx compatibility with pre-commit hooks

Author: jdalton

package.json

@@ -795,6 +795,7 @@
       "@sigstore/sign": "4.1.0",
       "ansi-regex": "6.2.2",
       "debug": "4.4.3",
+      "execa": "5.1.1",
       "has-flag": "5.0.1",
       "isexe": "3.1.1",
       "lru-cache": "11.2.2",
@@ -812,7 +813,8 @@
     "patchedDependencies": {
       "@npmcli/run-script@10.0.0": "patches/@npmcli__run-script@10.0.0.patch",
       "@sigstore/sign@4.1.0": "patches/@sigstore__sign@4.1.0.patch",
-      "node-gyp@11.5.0": "patches/node-gyp@11.5.0.patch"
+      "node-gyp@11.5.0": "patches/node-gyp@11.5.0.patch",
+      "execa@5.1.1": "patches/execa@5.1.1.patch"
     }
   }
 }

patches/execa@5.1.1.patch

@@ -0,0 +1,12 @@
+diff --git a/lib/kill.js b/lib/kill.js
+index 287a14238ea9fa99b3a9c0bdaabd13df72230d78..998d34578b1d3a360c2a0c7a2dc0acb6d5c15ea0 100644
+--- a/lib/kill.js
++++ b/lib/kill.js
+@@ -1,6 +1,6 @@
+ 'use strict';
+ const os = require('os');
+-const onExit = require('signal-exit');
++const { onExit } = require('signal-exit');
+ 
+ const DEFAULT_FORCE_KILL_TIMEOUT = 1000 * 5;
+