test: fixate luatest dependency

readview test select fails on master luatest [1].

1. https://github.com/tarantool/crud/actions/runs/9742871447/job/26885075515?pr=441

Author: DifferentialOrange

deps.sh

@@ -11,7 +11,7 @@ then
 fi
 
 # Test dependencies:
-$TTCTL rocks install luatest
+$TTCTL rocks install luatest 1.0.1
 $TTCTL rocks install luacheck 0.25.0
 $TTCTL rocks install luacov 0.13.0