[rocprof-sys] Use fmt APIs to construct strings instead of JOIN (#2643)

## Motivation

With the introduction of the new logging system base on `spdlog` library, opportunity shows to replace `timemory` dependent JOIN implementation with `fmt` library `format` and `join` APIs, which are shipped as a part of `spdlog` lib

## Technical Details

Use `fmt` provided APIs to properly format and package strings.

projects/rocprofiler-systems/source/lib/rocprof-sys/library/cpu_freq.cpp

@@ -300,7 +300,9 @@ config_perfetto_counter_tracks(type_list<Types...>, std::array<const char*, N> _
         constexpr auto _idx = tim::index_of<type, type_list<Types...>>::value;
         if(!track::exists(0))
         {
-            auto addendum = [&](const char* _v) { return JOIN(" ", "CPU", _v, "(S)"); };
+            auto addendum = [&](const char* _v) {
+                return fmt::format("CPU [{}] (S)", _v);
+            };
             track::emplace(0, addendum(_labels.at(_idx)), _units.at(_idx));
         }
     };
@@ -351,7 +353,7 @@ post_process()
         if(!freq_track::exists(_idx))
         {
             auto addendum = [&](const char* _v) {
-                return JOIN(" ", "CPU", _v, JOIN("", '[', _idx, ']'), "(S)");
+                return fmt::format("CPU {} [{}] (S)", _v, _idx);
             };
             freq_track::emplace(_idx, addendum("Frequency"), "MHz");
         }