release 0.7.2 (#66)

* Remove trailing / from metadata provider.

* Resolves issue #67
    - Before: 100 concurrent requests → 300+ refresh attempts → OOM
    - After: 100 concurrent requests → 1 refresh attempt → Stable memory

Added following changes:
    - Introduced a refresh coordinator to manage concurrent refresh requests
    - Implemented a test to simulate high concurrency and verify memory stability

* Issue #67 fixed.

memory_optimizations.go

@@ -32,6 +32,12 @@ func GetMemoryOptimizations() *MemoryOptimizations {
 	return globalMemoryOpts
 }
 
+// ResetGlobalMemoryOptimizations resets the global memory optimizations for testing
+func ResetGlobalMemoryOptimizations() {
+	globalMemoryOptsOnce = sync.Once{}
+	globalMemoryOpts = nil
+}
+
 // BufferPool manages a pool of byte buffers
 type BufferPool struct {
 	pool    sync.Pool