tools: store "default" OpenSSL version in openssl-matrix.nix

To help with automating keeping in sync with the bundled version.

Signed-off-by: Antoine du Hamel <duhamelantoine1995@gmail.com>
PR-URL: #64962
Reviewed-By: Filip Skokan <panva.ip@gmail.com>
Reviewed-By: Aviv Keller <me@aviv.sh>

Author: aduh95

tools/dep_updaters/update-nixpkgs-pin.sh

@@ -26,22 +26,39 @@ TMP_FILE=$(mktemp)
 sed "s/$CURRENT_VERSION_SHA1/$NEW_UPSTREAM_SHA1/;s/$CURRENT_TARBALL_HASH/$NEW_TARBALL_HASH/" "$NIXPKGS_PIN_FILE" > "$TMP_FILE"
 mv