Accept if the version string does not fit what we expect for GraalPy benchmarks

Author: timfel

mx.graalpython/mx_graalpython_benchmark.py

@@ -274,6 +274,9 @@ def extract_vm_info(self, args):
         # The benchmark data goes back a ways, we modify the reported dims for
         # continuity with the historical queries
         graalvm_version_match = re.search(r"\(([^\)]+ ((?:\d+\.?)+))\)", out_version)
+        if not graalvm_version_match:
+            mx.log(f"Using {out_version} as platform version string input")
+            graalvm_version_match = [out_version, out_version, out_version]
         dims = {
             'guest-vm': self.name(),
             'guest-vm-config': self.config_name(),