refactor: rename Go module from c4 to games

Rename module path github.com/ryanhamamura/c4 to
github.com/ryanhamamura/games across go.mod, all source files,
and golangci config.

connect4/persist.go

@@ -3,8 +3,8 @@ package connect4
 import (
 	"context"
 
-	"github.com/ryanhamamura/c4/db/repository"
-	"github.com/ryanhamamura/c4/player"
+	"github.com/ryanhamamura/games/db/repository"
+	"github.com/ryanhamamura/games/player"
 
 	"github.com/rs/zerolog/log"
 )

connect4/store.go

@@ -4,8 +4,8 @@ import (
 	"context"
 	"sync"
 
-	"github.com/ryanhamamura/c4/db/repository"
-	"github.com/ryanhamamura/c4/player"
+	"github.com/ryanhamamura/games/db/repository"
+	"github.com/ryanhamamura/games/player"
 )
 
 type PlayerSession struct {

connect4/types.go

@@ -3,7 +3,7 @@ package connect4
 import (
 	"encoding/json"
 
-	"github.com/ryanhamamura/c4/player"
+	"github.com/ryanhamamura/games/player"
 )
 
 type Player struct {