Add test support for Fedora 42

Adds test resources and test case for Fedora 42, released in April 2025.
Includes fedora-release and os-release files with metadata for this
modern Fedora release.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: nir0s

tests/resources/distros/fedora42/etc/fedora-release

@@ -0,0 +1 @@
+Fedora release 42 (Forty Two)

tests/resources/distros/fedora42/usr/lib/os-release

@@ -0,0 +1,20 @@
+NAME="Fedora Linux"
+VERSION="42 (Forty Two)"
+ID=fedora
+VERSION_ID=42
+VERSION_CODENAME=""
+PLATFORM_ID="platform:f42"
+PRETTY_NAME="Fedora Linux 42 (Forty Two)"
+ANSI_COLOR="0;38;2;60;110;180"
+LOGO=fedora-logo-icon
+CPE_NAME="cpe:/o:fedoraproject:fedora:42"
+DEFAULT_HOSTNAME="fedora"
+HOME_URL="https://fedoraproject.org/"
+DOCUMENTATION_URL="https://docs.fedoraproject.org/en-US/fedora/f42/"
+SUPPORT_URL="https://ask.fedoraproject.org/"
+BUG_REPORT_URL="https://bugzilla.redhat.com/"
+REDHAT_BUGZILLA_PRODUCT="Fedora"
+REDHAT_BUGZILLA_PRODUCT_VERSION=42
+REDHAT_SUPPORT_PRODUCT="Fedora"
+REDHAT_SUPPORT_PRODUCT_VERSION=42
+SUPPORT_END=2026-05-13

tests/test_distro.py

@@ -297,6 +297,18 @@ def test_fedora30_os_release(self) -> None:
         }
         self._test_outcome(desired_outcome)
 
+    def test_fedora42_os_release(self) -> None:
+        desired_outcome = {
+            "id": "fedora",
+            "name": "Fedora Linux",
+            "pretty_name": "Fedora Linux 42 (Forty Two)",
+            "version": "42",
+            "pretty_version": "42",
+            "best_version": "42",
+            "codename": "",
+        }
+        self._test_outcome(desired_outcome)
+
     def test_guix_os_release(self) -> None:
         desired_outcome = {
             "id": "guix",