treewide: update homepages to https where available

Based on "problems" from repology:

https://repology.org/repository/nix_unstable/problems

Mostly simple changes to reflect redirects.

pkgs/development/tools/parsing/antlr/2.7.7.nix

@@ -19,7 +19,7 @@ stdenv.mkDerivation {
       frameworks. From a grammar, ANTLR generates a parser that can build and
       walk parse trees.
     '';
-    homepage = http://www.antlr.org/;
+    homepage = https://www.antlr.org/;
     license = licenses.bsd3;
     platforms = platforms.unix;
   };

pkgs/development/tools/parsing/antlr/3.4.nix

@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
       frameworks. From a grammar, ANTLR generates a parser that can build and
       walk parse trees.
     '';
-    homepage = http://www.antlr.org/;
+    homepage = https://www.antlr.org/;
     license = licenses.bsd3;
     platforms = platforms.linux ++ platforms.darwin;
   };

pkgs/development/tools/parsing/antlr/3.5.nix

@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
       frameworks. From a grammar, ANTLR generates a parser that can build and
       walk parse trees.
     '';
-    homepage = http://www.antlr.org/;
+    homepage = https://www.antlr.org/;
     license = licenses.bsd3;
     platforms = platforms.linux;
   };

pkgs/development/tools/parsing/antlr/4.7.nix

@@ -73,7 +73,7 @@ let
         frameworks. From a grammar, ANTLR generates a parser that can build and
         walk parse trees.
       '';
-      homepage = http://www.antlr.org/;
+      homepage = https://www.antlr.org/;
       license = licenses.bsd3;
       platforms = platforms.unix;
     };

pkgs/development/tools/parsing/byacc/default.nix

@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Berkeley YACC";
-    homepage = http://invisible-island.net/byacc/byacc.html;
+    homepage = https://invisible-island.net/byacc/byacc.html;
     license = licenses.publicDomain;
     platforms = platforms.unix;
   };