Disable clang-tidy check in some cases

Although "using namespace" is generally to be avoided, there are cases
where it is really useful and not much of a problem. These are these
cases.

Author: joto

src/format.hpp

@@ -13,6 +13,6 @@
 #define FMT_HEADER_ONLY
 #include <fmt/format.h>
 
-using namespace fmt::literals;
+using namespace fmt::literals; // NOLINT(google-global-names-in-headers)
 
 #endif // OSM2PGSQL_FORMAT_HPP

src/middle-ram.cpp

@@ -83,6 +83,7 @@ bool middle_ram_t::way_get(osmid_t id, osmium::memory::Buffer *buffer) const
         return false;
     }
 
+    // NOLINTNEXTLINE(google-build-using-namespace)
     using namespace osmium::builder::attr;
     osmium::builder::add_way(*buffer, _id(id), _tags(ele->tags),
                              _nodes(ele->ndids));
@@ -120,6 +121,7 @@ bool middle_ram_t::relation_get(osmid_t id,
         return false;
     }
 
+    // NOLINTNEXTLINE(google-build-using-namespace)
     using namespace osmium::builder::attr;
     osmium::builder::add_relation(*buffer, _id(id),
                                   _members(ele->members.for_builder()),