ci: bump fsst version during release (lance-format#4458)

Fixes https://github.com/lancedb/lance/actions/runs/16956707046

Author: jackye1995

.bumpversion.toml

@@ -182,4 +182,10 @@ replace = "<version>{new_version}</version>"
 [[tool.bumpversion.files]]
 filename = "java/spark/pom.xml"
 search = "<version>{current_version}</version>"
-replace = "<version>{new_version}</version>"
+replace = "<version>{new_version}</version>"
+
+# FSST crate version
+[[tool.bumpversion.files]]
+filename = "Cargo.toml"
+search = 'fsst = {{ version = "={current_version}"'
+replace = 'fsst = {{ version = "={new_version}"'