Bump hc core5 to 5.3.5

Author: tvernum

build-tools-internal/version.properties

@@ -30,7 +30,7 @@ opensaml = 4.3.0
 httpclient        = 4.5.14
 httpcore          = 4.4.16
 httpclient5       = 5.5
-httpcore5         = 5.3.4
+httpcore5         = 5.3.5
 httpasyncclient   = 4.1.5
 commonslogging    = 1.2
 commonscodec      = 1.15