cmd/aq/{install,update}: use proper cachepath

Author: nektro

src/cmd/aquila/install.zig

@@ -62,7 +62,7 @@ pub fn execute(self_name: []const u8, args: [][]u8) !void {
 
     // zigmod ci
     const ci = @import("../ci.zig");
-    try ci.do(gpa, modpath, moddir);
+    try ci.do(gpa, cachepath, moddir);
 
     // zig build
     const argv: []const string = &.{

src/cmd/aquila/update.zig

@@ -48,7 +48,7 @@ pub fn execute(self_name: []const u8, args: [][]u8) !void {
 
         // zigmod ci
         const ci = @import("../ci.zig");
-        try ci.do(gpa, modpath, moddir);
+        try ci.do(gpa, cachepath, moddir);
 
         // zig build
         const argv: []const string = &.{