fix: depend on datamodel version headers in datamodel glue (#843)

### Briefly, what does this PR introduce?
This will force rebuilding of the datamodel glue headers in local
development copies when the data model changes version.

Depends on:
- [x] upgrade eic-shell to EDM4hep 0.9,
https://eicweb.phy.anl.gov/containers/eic_container/-/merge_requests/689
- [x] roll out eic-shell with EDM4hep 0.9 to cvmfs and github actions
- [ ] ~~update minimum required EDM4hep version to 0.9~~ (compatibility
is ensured by febc5f7)
- [x] update EDM4eic to provide version header,
eic/EDM4eic#40,
- [x] release new EDM4eic version 2.1.0
- [x] upgrade eic-spack to provide EDM4eic version 2.1.0,
eic/eic-spack#521
- [x] upgrade eic-shell to EDM4eic 2.1,
https://eicweb.phy.anl.gov/containers/eic_container/-/merge_requests/690
- [x] roll out eic-shell with EDM4eic 2.1 to cvmfs and github actions
- [ ] ~~update minimum required EDM4hep version to 2.1~~ (compatibility
is ensured by febc5f7 )

### What kind of change does this PR introduce?
- [x] Bug fix (issue: `cmake --fresh` does not rebuild datamodel glue
header when switching datamodel versions)
- [ ] New feature (issue #__)
- [ ] Documentation update
- [ ] Other: __

### Please check if this PR fulfills the following:
- [ ] Tests for the changes have been added
- [ ] Documentation has been added / updated
- [ ] Changes have been communicated to collaborators

### Does this PR introduce breaking changes? What changes might users
need to make to their code?
No.

### Does this PR change default behavior?
No.

---------

Co-authored-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>

src/services/io/podio/CMakeLists.txt

@@ -31,14 +31,24 @@ plugin_glob_all(${PLUGIN_NAME})
 get_target_property(EDM4HEP_INTERFACE_INCLUDE_DIRECTORIES EDM4HEP::edm4hep INTERFACE_INCLUDE_DIRECTORIES)
 get_target_property(EDM4EIC_INTERFACE_INCLUDE_DIRECTORIES EDM4EIC::edm4eic INTERFACE_INCLUDE_DIRECTORIES)
 
+# Get the datamodel version headers
+set(EDM_VERSION_INCLUDES )
+if(${EDM4HEP_VERSION} VERSION_GREATER_EQUAL "0.9")
+  list(APPEND EDM_VERSION_INCLUDES ${EDM4HEP_INTERFACE_INCLUDE_DIRECTORIES}/edm4hep/EDM4hepVersion.h)
+endif()
+if(${EDM4EIC_VERSION} VERSION_GREATER_EQUAL "2.1.0")
+  list(APPEND EDM_VERSION_INCLUDES ${EDM4EIC_INTERFACE_INCLUDE_DIRECTORIES}/edm4eic/EDM4eicVersion.h)
+endif()
+
 # Generate the datamodel header files.
 add_custom_command(
-        OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/datamodel_glue.h ${CMAKE_CURRENT_BINARY_DIR}/datamodel_includes.h
-        COMMAND python3 ${PROJECT_SOURCE_DIR}/make_datamodel_glue.py
-                WORKING_DIR=${CMAKE_CURRENT_BINARY_DIR}
-                EDM4HEP_INCLUDE_DIR=${EDM4HEP_INTERFACE_INCLUDE_DIRECTORIES}
-                EDM4EIC_INCLUDE_DIR=${EDM4EIC_INTERFACE_INCLUDE_DIRECTORIES}
-        MAIN_DEPENDENCY ${PROJECT_SOURCE_DIR}/make_datamodel_glue.py
+    OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/datamodel_glue.h ${CMAKE_CURRENT_BINARY_DIR}/datamodel_includes.h
+    COMMAND python3 ${PROJECT_SOURCE_DIR}/make_datamodel_glue.py
+        WORKING_DIR=${CMAKE_CURRENT_BINARY_DIR}
+        EDM4HEP_INCLUDE_DIR=${EDM4HEP_INTERFACE_INCLUDE_DIRECTORIES}
+        EDM4EIC_INCLUDE_DIR=${EDM4EIC_INTERFACE_INCLUDE_DIRECTORIES}
+    MAIN_DEPENDENCY ${PROJECT_SOURCE_DIR}/make_datamodel_glue.py
+    DEPENDS ${EDM_VERSION_INCLUDES}
 )
 
 # Add include directories (works same as target_include_directories)
@@ -53,7 +63,7 @@ root_generate_dictionary(G__datamodel_vectors ${datamodel_BINARY_DIR}/datamodel_
 
 # Install root dictionaries made by PODIO
 set(my_root_dict_files
-        ${PROJECT_BINARY_DIR}/lib${PLUGIN_NAME}_plugin_rdict.pcm
-        ${PROJECT_BINARY_DIR}/lib${PLUGIN_NAME}_plugin.rootmap
-        )
+    ${PROJECT_BINARY_DIR}/lib${PLUGIN_NAME}_plugin_rdict.pcm
+    ${PROJECT_BINARY_DIR}/lib${PLUGIN_NAME}_plugin.rootmap
+)
 install(FILES ${my_root_dict_files} DESTINATION ${PLUGIN_OUTPUT_DIRECTORY})