chore: remove trailing whitespace from all source files in src/ directory

runtime/gc/gc_heap.h

@@ -0,0 +1,17 @@
+#ifndef RAVA_GC_HEAP_H
+#define RAVA_GC_HEAP_H
+
+#include "gc.h"
+
+void rava_gc_heap_init(void);
+void rava_gc_heap_shutdown(void);
+
+void* rava_gc_heap_alloc(size_t size, uint8_t type);
+void rava_gc_heap_free(void *ptr, size_t size);
+
+bool rava_gc_request_block(void);
+void rava_gc_recycle_blocks(void);
+
+RavaGCHeap_t* rava_gc_get_heap(void);
+
+#endif