Bump up version to 0.6.3 (#14)

Author: sfc-gh-hyu

plugins/nf-snowflake/src/resources/META-INF/MANIFEST.MF

@@ -1,6 +1,6 @@
 Manifest-Version: 1.0
 Plugin-Id: nf-snowflake
-Plugin-Version: 0.6.2
+Plugin-Version: 0.6.3
 Plugin-Class: nextflow.snowflake.SnowflakePlugin
 Plugin-Provider: nextflow
 Plugin-Requires: >=24.01.0-edge