increment $VERSION after 0.021 release

Author: karenetheridge

Changes

@@ -1,5 +1,7 @@
 Revision history for JSON-Schema-Tiny
 
+{{$NEXT}}
+
 0.021     2023-04-22 17:25:12Z
           - fix bad handling of empty patterns in "pattern",
             "patternProperties" keywords

lib/JSON/Schema/Tiny.pm

@@ -4,7 +4,7 @@ package JSON::Schema::Tiny;
 # ABSTRACT: Validate data against a schema, minimally
 # KEYWORDS: JSON Schema data validation structure specification tiny
 
-our $VERSION = '0.021';
+our $VERSION = '0.022';
 
 use 5.020;  # for unicode_strings, signatures, postderef features
 use experimental 0.026 qw(signatures postderef args_array_with_signatures);