Fix conan build breakage from buf v2 upgrade (#539)

Author: lia-viam

conanfile.py

@@ -26,7 +26,7 @@ class ViamCppSdkRecipe(ConanFile):
         "shared": True
     }
 
-    exports_sources = "CMakeLists.txt", "LICENSE", "src/*"
+    exports_sources = "CMakeLists.txt", "LICENSE", "src/*", "buf.lock"
 
     def set_version(self):
         content = load(self, "CMakeLists.txt")
@@ -46,13 +46,13 @@ def configure(self):
     def _xtensor_requires(self):
         if valid_max_cppstd(self, 14, False):
             return 'xtensor/[>=0.24.3 <0.26.0]'
-        
+
         return 'xtensor/[>=0.24.3]'
 
     def _grpc_requires(self):
         if valid_max_cppstd(self, 14, False):
             return 'grpc/[>=1.48.4 <1.70.0]'
-        
+
         return 'grpc/[>=1.48.4]'
 
     def requirements(self):

src/viam/api/CMakeLists.txt

@@ -4,7 +4,7 @@ set(PROTO_GEN_DIR ${CMAKE_CURRENT_SOURCE_DIR})
 if (VIAMCPPSDK_USE_DYNAMIC_PROTOS)
   # reads in buf.lock and grabs the commit hashes supported by this version of C++ SDK
   if (NOT EXISTS ${PROJECT_SOURCE_DIR}/buf.lock)
-    message(FATAL_ERROR "No `buf.lock` file was found in the src/viam/api directory")
+    message(FATAL_ERROR "No `buf.lock` file was found in the project source directory")
   endif()
   file(READ ${PROJECT_SOURCE_DIR}/buf.lock lockfile)