build: fix detection of openssl 3.0

Refs: #5154
Change-Id: I93ccd3d3ac0f9b8940cda76e7a6df02a65999c90
diff --git a/wscript b/wscript
index c28bed1..966268c 100644
--- a/wscript
+++ b/wscript
@@ -104,7 +104,7 @@
 
     conf.check_osx_frameworks()
     conf.check_sqlite3()
-    conf.check_openssl(lib='crypto', atleast_version=0x1000200f) # 1.0.2
+    conf.check_openssl(lib='crypto', atleast_version='1.0.2')
 
     boost_libs = ['system', 'program_options', 'chrono', 'date_time', 'filesystem', 'thread', 'log']