chore(deps): Update dependency sbt to v1.12.6 (#872)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

mise.toml

@@ -1,4 +1,4 @@
 [tools]
 java = "corretto-21.0.10+7.0.LTS"
-sbt = "1.12.5"
+sbt = "1.12.6"
 "npm:@fission-ai/openspec" = "1.2.0"