[performance] bump codeberg.org/gruf/go-kv to v2 (#4341)

updates our codeberg.org/gruf/go-kv log key-value formatting library to latest version, which comes with some maaaaaaajor speed boosts in the form of:
- very minimal reflect.Value{} usage
- caching prepared formatting functions per type

~~still a work-in-progress until i make a release tag on the go-kv repository, which itself is waiting on published benchmark results in the README and finishing writing some code comments~~

benchmarks so far show this to be ~3x faster than the "fmt" stdlib package on average, when run across a wide variety (106 different types) of test cases, while still creating more visually friendly log output and actually recursing down nested struct ptrs

Reviewed-on: https://codeberg.org/superseriousbusiness/gotosocial/pulls/4341
Co-authored-by: kim <grufwub@gmail.com>
Co-committed-by: kim <grufwub@gmail.com>

internal/log/entry.go

@@ -21,7 +21,7 @@ import (
 	"context"
 	"fmt"
 
-	"codeberg.org/gruf/go-kv"
+	"codeberg.org/gruf/go-kv/v2"
 )
 
 type Entry struct {

internal/log/format.go

@@ -1,29 +0,0 @@
-// GoToSocial
-// Copyright (C) GoToSocial Authors admin@gotosocial.org
-// SPDX-License-Identifier: AGPL-3.0-or-later
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Affero General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU Affero General Public License for more details.
-//
-// You should have received a copy of the GNU Affero General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-package log
-
-import "codeberg.org/gruf/go-kv/format"
-
-// VarDump returns a serialized, useful log / error output of given variable.
-func VarDump(a any) string {
-	buf := getBuf()
-	format.Appendf(buf, "{:v}", a)
-	s := string(buf.B)
-	putBuf(buf)
-	return s
-}

internal/log/log.go

@@ -26,7 +26,7 @@ import (
 	"time"
 
 	"code.superseriousbusiness.org/gotosocial/internal/util/xslices"
-	"codeberg.org/gruf/go-kv"
+	"codeberg.org/gruf/go-kv/v2"
 )
 
 var (