Fix version sorting

This whole time it was just coincidentally passing the tests.

Author: code-asher

storage/storage.go

@@ -182,7 +182,8 @@ type ByVersion []Version
 func (vs ByVersion) Len() int      { return len(vs) }
 func (vs ByVersion) Swap(i, j int) { vs[i], vs[j] = vs[j], vs[i] }
 func (vs ByVersion) Less(i, j int) bool {
-	cmp := semver.Compare(vs[i].Version, vs[j].Version)
+	// Go's semver library requires a v prefix.
+	cmp := semver.Compare("v"+vs[i].Version, "v"+vs[j].Version)
 	if cmp != 0 {
 		return cmp >= 0
 	}

storage/storage_test.go

@@ -1159,6 +1159,17 @@ func TestSortByVersion(t *testing.T) {
 				{Version: "1.0.0", TargetPlatform: storage.PlatformWin32X64},
 			},
 		},
+		{
+			name: "CompareMSPythonStyle",
+			versions: []storage.Version{
+				{Version: "2023.9.1102792234"},
+				{Version: "2023.10.1002811100"},
+			},
+			expected: []storage.Version{
+				{Version: "2023.10.1002811100"},
+				{Version: "2023.9.1102792234"},
+			},
+		},
 	}
 
 	for _, test := range tests {