Bump fortio.org/safecast from 0.1.1 to 1.0.0 in the fortio group (#241)

Bumps the fortio group with 1 update: [fortio.org/safecast](https://github.com/fortio/safecast).


Updates `fortio.org/safecast` from 0.1.1 to 1.0.0
- [Release notes](https://github.com/fortio/safecast/releases)
- [Commits](fortio/safecast@v0.1.1...v1.0.0)

---
updated-dependencies:
- dependency-name: fortio.org/safecast
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: fortio
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

go.mod

@@ -5,7 +5,7 @@ go 1.22.7
 require (
 	fortio.org/cli v1.9.0
 	fortio.org/log v1.16.0
-	fortio.org/safecast v0.1.1
+	fortio.org/safecast v1.0.0
 	fortio.org/sets v1.2.0
 	fortio.org/struct2env v0.4.1
 	fortio.org/terminal v0.9.1

go.sum

@@ -4,8 +4,8 @@ fortio.org/cli v1.9.0 h1:cPgNHvrjxznmbmwuXSwPqQLKZ+RMW8i0iAOESLjt1aI=
 fortio.org/cli v1.9.0/go.mod h1:pk/JBE8LcXtNuo5Yj2bLsVbwPaHo8NWdbstSN0cpbFk=
 fortio.org/log v1.16.0 h1:GhU8/9NkYZmEIzvTN/DTMedDAStLJraWUUVUA2EbNDc=
 fortio.org/log v1.16.0/go.mod h1:t58Spg9njjymvRioh5F6qKGSupEsnMjXLGWIS1i3khE=
-fortio.org/safecast v0.1.1 h1:lKSckzBVCbeJXTNUiAvBdplYUafEHM9BahrP46WgPEQ=
-fortio.org/safecast v0.1.1/go.mod h1:xZmcPk3vi4kuUFf+tq4SvnlVdwViqf6ZSZl91Jr9Jdg=
+fortio.org/safecast v1.0.0 h1:dr3131WPX8iS1pTf76+39WeXbTrerDYLvi9s7Oi3wiY=
+fortio.org/safecast v1.0.0/go.mod h1:xZmcPk3vi4kuUFf+tq4SvnlVdwViqf6ZSZl91Jr9Jdg=
 fortio.org/sets v1.2.0 h1:FBfC7R2xrOJtkcioUbY6WqEzdujuBoZRbSdp1fYF4Kk=
 fortio.org/sets v1.2.0/go.mod h1:J2BwIxNOLWsSU7IMZUg541kh3Au4JEKHrghVwXs68tE=
 fortio.org/struct2env v0.4.1 h1:rJludAMO5eBvpWplWEQNqoVDFZr4RWMQX7RUapgZyc0=