eagle7: unbreak by using openssl 1.0 instead of 1.1

The default openssl version in nixpkgs is too new for eagle7 and it
fails to start:

  eagle: error while loading shared libraries: libssl.so.1.0.0: cannot open shared object file: No such file or directory

pkgs/top-level/all-packages.nix

@@ -23689,7 +23689,9 @@ in
   # Since version 8 Eagle requires an Autodesk account and a subscription
   # in contrast to single payment for the charged editions.
   # This is the last version with the old model.
-  eagle7 = callPackage ../applications/science/electronics/eagle/eagle7.nix { };
+  eagle7 = callPackage ../applications/science/electronics/eagle/eagle7.nix {
+    openssl = openssl_1_0_2;
+  };
 
   eagle = libsForQt5.callPackage ../applications/science/electronics/eagle/eagle.nix { };