[bazel] Bump spdlog version (#188)

Signed-off-by: Shameek Ganguly <[email protected]>
(cherry picked from commit b84f016)

Author: shameekganguly

MODULE.bazel

@@ -9,4 +9,4 @@ bazel_dep(name = "buildifier_prebuilt", version = "7.3.1")
 bazel_dep(name = "googletest", version = "1.14.0")
 bazel_dep(name = "rules_gazebo", version = "0.0.2")
 bazel_dep(name = "rules_license", version = "1.0.0")
-bazel_dep(name = "spdlog", version = "1.12.0")
+bazel_dep(name = "spdlog", version = "1.15.3")