(conan-io#23245) + [sbepp] Added support of gcc8.1 to sbeppc

* + [sbepp] Added support of gcc8.1 to sbeppc

* Update recipes/sbepp/all/conanfile.py

Co-authored-by: Martin Valgur <martin.valgur@gmail.com>

---------

Co-authored-by: Dmytro Ovdiienko <dmytro.ovdiienko@gmail.com>
Co-authored-by: Martin Valgur <martin.valgur@gmail.com>

recipes/sbepp/all/conanfile.py

@@ -37,7 +37,7 @@ def _min_cppstd(self):
     def _compilers_minimum_version(self):
         if self.options.with_sbeppc:
             return {
-                "gcc": "9",
+                "gcc": "8",
                 "clang": "9",
                 "apple-clang": "11"
             }