fix(fsearch): remove UPSTREAM_RELEASE where native codename exists

Drop trixie, sid, and newer Ubuntu releases from fsearch since the
package is now in native Debian and Ubuntu repos for those codenames.

With only bullseye, bookworm, jammy, and noble supported, the
UPSTREAM_CODENAME case statement is no longer needed and DEBIANVER
becomes UPSTREAM_RELEASE directly.

Refs: #1808

Author: mvanhorn

01-main/packages/fsearch

@@ -1,4 +1,5 @@
 DEFVER=2
+CODENAMES_SUPPORTED="bullseye bookworm jammy noble"
 # shellcheck disable=SC2168
 local THE_KEY
 # shellcheck disable=SC2168
@@ -9,14 +10,8 @@ case ${UPSTREAM_ID} in
         THE_REPO="https://ppa.launchpadcontent.net/christian-boxdoerfer/fsearch-stable/ubuntu ${UPSTREAM_CODENAME} main"
         ;;
     *)
-        # shellcheck disable=SC2168
-        local DEBIANVER
-        case ${UPSTREAM_CODENAME} in
-            sid|13|trixie) DEBIANVER=Unstable ;;
-            *) DEBIANVER="${UPSTREAM_RELEASE}" ;;
-        esac
-        THE_KEY="https://download.opensuse.org/repositories/home:cboxdoerfer/Debian_${DEBIANVER}/Release.key"
-        THE_REPO="http://download.opensuse.org/repositories/home:/cboxdoerfer/Debian_${DEBIANVER}/ /"
+        THE_KEY="https://download.opensuse.org/repositories/home:cboxdoerfer/Debian_${UPSTREAM_RELEASE}/Release.key"
+        THE_REPO="http://download.opensuse.org/repositories/home:/cboxdoerfer/Debian_${UPSTREAM_RELEASE}/ /"
         ;;
 esac
 ASC_KEY_URL="${THE_KEY}"