www/firefox: update to 108.0.2 (rc1)

Release Notes (soon):
  https://www.mozilla.org/en-US/firefox/108.0.2/releasenotes/

While here, set harfbuzz dependency straight after 2022Q4 finally
went away.

(cherry picked from commit 662f809)

www/firefox/Makefile

@@ -1,6 +1,5 @@
 PORTNAME=	firefox
-DISTVERSION=	108.0.1
-PORTREVISION=	2
+DISTVERSION=	108.0.2
 # DISTVERSIONSUFFIX=	b9
 PORTEPOCH=	2
 CATEGORIES=	www wayland
@@ -12,12 +11,11 @@ MAINTAINER=	gecko@FreeBSD.org
 COMMENT=	Web browser based on the browser portion of Mozilla
 WWW=		https://www.mozilla.com/firefox
 
-# harfbuzz: originally 5.3.1, but Q4 is behind
 BUILD_DEPENDS=	nspr>=4.32:devel/nspr \
 		nss>=3.85:security/nss \
 		icu>=71.1:devel/icu \
 		libevent>=2.1.8:devel/libevent \
-		harfbuzz>=5.2.0:print/harfbuzz \
+		harfbuzz>=5.3.1:print/harfbuzz \
 		graphite2>=1.3.14:graphics/graphite2 \
 		png>=1.6.37:graphics/png \
 		dav1d>=1.0.0:multimedia/dav1d \

www/firefox/distinfo

@@ -1,3 +1,3 @@
-TIMESTAMP = 1671212098
-SHA256 (firefox-108.0.1.source.tar.xz) = 9821ac130dad01383e03276bf6cc92d41329d351da1fa7fa238168f8890611ea
-SIZE (firefox-108.0.1.source.tar.xz) = 498268448
+TIMESTAMP = 1672880783
+SHA256 (firefox-108.0.2.source.tar.xz) = 42e6d6b27ad0694a4fc9dd736888ad36c99eb2dbcce96e134584805d644ca300
+SIZE (firefox-108.0.2.source.tar.xz) = 509638740