.github: Fix path to UefiPayloadPkg in REVIEWERS

Signed-off-by: Michael D Kinney <[email protected]>

Author: mdkinney

.github/REVIEWERS

@@ -857,7 +857,7 @@
 # M: James Lu <[email protected]> [jameslu8]
 # R: Gua Guo <[email protected]> [gguo11837463]
 # S: Maintained
-/UefiPalyloadPkg/**  @gguo11837463
+/UefiPayloadPkg/**  @gguo11837463
 
 # UnitTestFrameworkPkg
 # F: UnitTestFrameworkPkg/