[dependencies] update go-store, go-mutexes (#422)

* update go-store, go-mutexes

Signed-off-by: kim <grufwub@gmail.com>

* update vendored code

Signed-off-by: kim <grufwub@gmail.com>

vendor/codeberg.org/gruf/go-mutexes/pool.go

@@ -0,0 +1,40 @@
+package mutexes
+
+// pool is a very simply memory pool.
+type pool struct {
+	current []interface{}
+	victim  []interface{}
+	alloc   func() interface{}
+}
+
+// Acquire will returns a sync.RWMutex from pool (or alloc new).
+func (p *pool) Acquire() interface{} {
+	// First try the current queue
+	if l := len(p.current) - 1; l >= 0 {
+		v := p.current[l]
+		p.current = p.current[:l]
+		return v
+	}
+
+	// Next try the victim queue.
+	if l := len(p.victim) - 1; l >= 0 {
+		v := p.victim[l]
+		p.victim = p.victim[:l]
+		return v
+	}
+
+	// Lastly, alloc new.
+	return p.alloc()
+}
+
+// Release places a sync.RWMutex back in the pool.
+func (p *pool) Release(v interface{}) {
+	p.current = append(p.current, v)
+}
+
+// GC will clear out unused entries from the pool.
+func (p *pool) GC() {
+	current := p.current
+	p.current = nil
+	p.victim = current
+}