nit

Author: kukushking

building/lambda/build-lambda-layer.sh

@@ -11,13 +11,14 @@ popd
 rm -rf dist arrow
 
 export ARROW_HOME=$(pwd)/dist
+export ARROW_VERSION=18.1.0
 export LD_LIBRARY_PATH=$(pwd)/dist/lib:$LD_LIBRARY_PATH
 export CMAKE_PREFIX_PATH=$ARROW_HOME:$CMAKE_PREFIX_PATH
-export SETUPTOOLS_SCM_PRETEND_VERSION=18.1.0
+export SETUPTOOLS_SCM_PRETEND_VERSION=$ARROW_VERSION
 
 git clone \
   --depth 1 \
-  --branch apache-arrow-18.1.0 \
+  --branch "apache-arrow-${ARROW_VERSION}" \
   --single-branch \
   https://github.com/apache/arrow.git