Fix Requires version

Author: yuehhua

Project.toml

@@ -23,7 +23,7 @@ CuArrays = "^1.4, <1.6.0"
 DataStructures = "~0.17"
 Flux = "~0.10"
 IRTools = "~0.3"
-Requires = "~0.5"
+Requires = "≥0.5"
 Zygote = "~0.4"
 ZygoteRules = "~0.2"
 julia = "1.0, 1.1, 1.2, 1.3"