devel/rubygem-bootsnap: Update to 1.18.3

Changes:	https://github.com/Shopify/bootsnap/blob/main/CHANGELOG.md

devel/rubygem-bootsnap/Makefile

 PORTNAME=	bootsnap
-PORTVERSION=	1.17.1
+PORTVERSION=	1.18.3
 CATEGORIES=	devel rubygems
 MASTER_SITES=	RG
 

devel/rubygem-bootsnap/distinfo

-TIMESTAMP = 1706249622
-SHA256 (rubygem/bootsnap-1.17.1.gem) = dbb2c6d4d594b0c87854f34a9073c9114a0c9a1023b8579e2eaaeb28848b1809
-SIZE (rubygem/bootsnap-1.17.1.gem) = 40448
+TIMESTAMP = 1708450340
+SHA256 (rubygem/bootsnap-1.18.3.gem) = d7b70de761e2fb1d63d21dd941b393c881c5cab5575211369cede788dfc034eb
+SIZE (rubygem/bootsnap-1.18.3.gem) = 41984