scripts/run-tests.sh: test with OpenSSL 3.0

Signed-off-by: Eric Biggers <ebiggers@google.com>
diff --git a/scripts/run-tests.sh b/scripts/run-tests.sh
index 55aeaec..fb21c39 100755
--- a/scripts/run-tests.sh
+++ b/scripts/run-tests.sh
@@ -167,6 +167,11 @@
 $MAKE CFLAGS="-O2 -Werror" LDFLAGS="-L/usr/lib/openssl-1.0" \
 	CPPFLAGS="-I/usr/include/openssl-1.0" check
 
+log "Build and test using OpenSSL 3.0"
+OSSL3=$HOME/src/openssl/inst/usr/local
+LD_LIBRARY_PATH="$OSSL3/lib64" $MAKE CFLAGS="-O2 -Werror" \
+	LDFLAGS="-L$OSSL3/lib64" CPPFLAGS="-I$OSSL3/include" check
+
 log "Build and test using -funsigned-char"
 $MAKE CFLAGS="-O2 -Werror -funsigned-char" check