Fix link check

Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com>

Author: aggarg

.github/allowed_urls.txt

@@ -2,4 +2,4 @@ https://www.renesas.com/us/en/document/mah/rh850f1k-group-users-manual-hardware?
 https://www.renesas.com/us/en/products/microcontrollers-microprocessors/rh850-automotive-mcus
 https://www.renesas.com/us/en/software-tool/c-compiler-package-rh850-family#downloads
 https://www.microchip.com
-https://www.microchip.com/support
+https://www.microchip.com/support/