completion, pkg/utils: Update the range of supported Fedora releases

Rawhide currently points to Fedora 34, and Fedora 30 reached End of
Life on 24th November:
https://fedoraproject.org/wiki/End_of_life

https://github.com/containers/toolbox/pull/663

completion/bash/toolbox

@@ -10,8 +10,8 @@ __toolbox_images() {
 }
 
 __toolbox() {
-  local MIN_VERSION=29
-  local RAWHIDE_VERSION=32
+  local MIN_VERSION=32
+  local RAWHIDE_VERSION=34
 
   local commands="create enter help init-container list reset rm rmi run"
 

src/pkg/utils/utils.go

@@ -41,7 +41,7 @@ import (
 
 const (
 	idTruncLength          = 12
-	releaseDefaultFallback = "31"
+	releaseDefaultFallback = "32"
 )
 
 const (