Be a bit more defensive in determining EOF

Just in case the reported end position is off the end of
the file.

python/lsst/resources/_resourceHandles/_httpResourceHandle.py

@@ -188,7 +188,7 @@ def read(self, size: int = -1) -> bytes:
                     _, end = range.split("-")
                     end_pos = int(end)
                     if total != "*":
-                        if end_pos == int(total) - 1:
+                        if end_pos >= int(total) - 1:
                             self._eof = True
             else:
                 self.log.warning("Requested byte range from server but instead got: %s", content_range)