Bump @actions/exec from 1.0.1 to 1.0.4

Bumps [@actions/exec](https://github.com/actions/toolkit/tree/HEAD/packages/exec) from 1.0.1 to 1.0.4.
- [Release notes](https://github.com/actions/toolkit/releases)
- [Changelog](https://github.com/actions/toolkit/blob/main/packages/exec/RELEASES.md)
- [Commits](https://github.com/actions/toolkit/commits/HEAD/packages/exec)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -23,7 +23,7 @@
   "homepage": "https://github.com/codecov/codecov-action#readme",
   "dependencies": {
     "@actions/core": "^1.2.0",
-    "@actions/exec": "^1.0.1",
+    "@actions/exec": "^1.0.4",
     "@types/jest": "^26.0.10",
     "@zeit/ncc": "^0.22.3",
     "fs": "0.0.1-security",