Updated copyright headers (#15124)

* Updated copyright headers

* Revert "Fixed linker warnings in docs snippets on Windows (#15119)"

This reverts commit 372699ec49.

docs/snippets/cpu/Bfloat16Inference0.cpp

@@ -1,6 +1,6 @@
 #include <openvino/runtime/core.hpp>
 
-int cpu_Bfloat16Inference0() {
+int main() {
 //! [part0]
 ov::Core core;
 auto cpuOptimizationCapabilities = core.get_property("CPU", ov::device::capabilities);

docs/snippets/cpu/Bfloat16Inference1.cpp

@@ -1,6 +1,6 @@
 #include <openvino/runtime/core.hpp>
 
-int cpu_Bfloat16Inference1() {
+int main() {
 using namespace InferenceEngine;
 //! [part1]
 ov::Core core;

docs/snippets/cpu/Bfloat16Inference2.cpp

@@ -1,6 +1,6 @@
 #include <openvino/runtime/core.hpp>
 
-int cpu_Bfloat16Inference2() {
+int main() {
 using namespace InferenceEngine;
 //! [part2]
 ov::Core core;

docs/snippets/cpu/compile_model.cpp

@@ -1,7 +1,7 @@
 #include <openvino/runtime/core.hpp>
 
 
-int cpu_compiled_model() {
+int main() {
     {
         //! [compile_model_default]
         ov::Core core;

docs/snippets/cpu/dynamic_shape.cpp

@@ -1,7 +1,7 @@
 #include <openvino/runtime/core.hpp>
 
 
-int cpu_dynamic_shape() {
+int main() {
     {
         //! [static_shape]
         ov::Core core;

docs/snippets/cpu/ov_sparse_weights_decompression.cpp

@@ -4,7 +4,7 @@
 #include <openvino/runtime/core.hpp>
 #include "openvino/runtime/intel_cpu/properties.hpp"
 
-int cpu_ov_sparse_weights_decompression() {
+int main() {
     try {
         std::string modelPath = "model.xml";
         std::string device = "CPU";