prefer std::format over fmt

Switch to std::format to remove the dependency on fmt.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Id3a1295ba8a90fb756cfc500892dcc5b3235e27b
diff --git a/occ_device.cpp b/occ_device.cpp
index c83b1ff..ded5db9 100644
--- a/occ_device.cpp
+++ b/occ_device.cpp
@@ -25,7 +25,7 @@
     }
     catch (const std::exception& e)
     {
-        log<level::ERR>(fmt::format("Failed to set {} active: {}",
+        log<level::ERR>(std::format("Failed to set {} active: {}",
                                     devPath.c_str(), e.what())
                             .c_str());
     }
@@ -152,7 +152,7 @@
     catch (const fs::filesystem_error& e)
     {
         log<level::ERR>(
-            fmt::format("getFilenameByRegex: Failed to get filename: {}",
+            std::format("getFilenameByRegex: Failed to get filename: {}",
                         e.what())
                 .c_str());
     }