update go-ffmpreg to v0.2.5 (pulls in latest tetratelabs/wazero) (#3203)

vendor/github.com/tetratelabs/wazero/internal/wasm/memory.go

@@ -52,7 +52,8 @@ type MemoryInstance struct {
 	definition api.MemoryDefinition
 
 	// Mux is used in interpreter mode to prevent overlapping calls to atomic instructions,
-	// introduced with WebAssembly threads proposal.
+	// introduced with WebAssembly threads proposal, and in compiler mode to make memory modifications
+	// within Grow non-racy for the Go race detector.
 	Mux sync.Mutex
 
 	// waiters implements atomic wait and notify. It is implemented similarly to golang.org/x/sync/semaphore,
@@ -227,6 +228,11 @@ func MemoryPagesToBytesNum(pages uint32) (bytesNum uint64) {
 
 // Grow implements the same method as documented on api.Memory.
 func (m *MemoryInstance) Grow(delta uint32) (result uint32, ok bool) {
+	if m.Shared {
+		m.Mux.Lock()
+		defer m.Mux.Unlock()
+	}
+
 	currentPages := m.Pages()
 	if delta == 0 {
 		return currentPages, true
@@ -299,6 +305,7 @@ func PagesToUnitOfBytes(pages uint32) string {
 
 // Uses atomic write to update the length of a slice.
 func atomicStoreLengthAndCap(slice *[]byte, length uintptr, cap uintptr) {
+	//nolint:staticcheck
 	slicePtr := (*reflect.SliceHeader)(unsafe.Pointer(slice))
 	capPtr := (*uintptr)(unsafe.Pointer(&slicePtr.Cap))
 	atomic.StoreUintptr(capPtr, cap)
@@ -308,6 +315,7 @@ func atomicStoreLengthAndCap(slice *[]byte, length uintptr, cap uintptr) {
 
 // Uses atomic write to update the length of a slice.
 func atomicStoreLength(slice *[]byte, length uintptr) {
+	//nolint:staticcheck
 	slicePtr := (*reflect.SliceHeader)(unsafe.Pointer(slice))
 	lenPtr := (*uintptr)(unsafe.Pointer(&slicePtr.Len))
 	atomic.StoreUintptr(lenPtr, length)