add build.properties

mzuehlke · mzuehlke · commit ae647e84216f · 2024-10-29T08:07:12.000+01:00
so Scala Steward can pick up the sbt version and update it in the `action.yml`
diff --git a/.gitignore b/.gitignore
@@ -0,0 +1,2 @@
+/.bsp/
+target/
diff --git a/project/build.properties b/project/build.properties
@@ -0,0 +1 @@
+sbt.version=1.10.3
