postgis3: update to 3.5.3, add pg17 subport

Author: nilason

databases/postgis3/Portfile

@@ -5,8 +5,8 @@ PortSystem          1.0
 name                postgis3
 categories          databases gis
 license             GPL-2+
-version             3.5.2
-revision            1
+version             3.5.3
+revision            0
 maintainers         {yahoo.com:n_larsson @nilason} {vince @Veence} openmaintainer
 
 description         PostGIS is the spatial extension to the\
@@ -21,9 +21,9 @@ homepage            https://postgis.net/
 master_sites        https://download.osgeo.org/postgis/source
 distname            postgis-${version}
 
-checksums           rmd160  b55b48183a46bfa7b34c0985628e577c8386c16b \
-                    sha256  fb9f95d56e3aaef6a296473c76a3b99005ac41864d486c197cd478c9b14f791a \
-                    size    15045553
+checksums           rmd160  eb4a59b62afc2f42658cc7108710faf68f48b02f \
+                    sha256  650e44de788d38175e3719df1d2ca4356bd987f54fe3d2030808de76464a2a06 \
+                    size    14899901
 
 patchfiles          patch-configure.diff
 
@@ -43,7 +43,7 @@ livecheck.url       ${master_sites}
 livecheck.regex     {postgis2?-(\d+(?:\.\d+)*)\.[tz]}
 
 # PostgreSQL subports
-set postgresql_suffixes {12 13 14 15 16}
+set postgresql_suffixes {12 13 14 15 16 17}
 set subport_names {}
 set docports {}
 foreach v ${postgresql_suffixes} {