Parallel HDF5 requests MPI_Fortran even if unneeded if language Fortran enabled.

**Describe the bug**
I work on a program that uses a mixture of C and Fortran. Only the C side of the code interacts with HDF5 or MPI. As a result, we typically don't enable Fortran support in our MPI and HDF5 builds.

If I build our code with parallel HDF5 2.1.0 or 2.1.1, however, the call to `find_dependency(MPI QUIET REQUIRED)`, [[here]](https://github.com/HDFGroup/hdf5/blob/f010df9fe6de12113a099e9a42230015d5ba7175/config/install/hdf5-config.cmake.in#L100) will see that we have the Fortran language enabled, and attempt to load `MPI::MPI_Fortran`.

Here is a minimum working example that shows this behavior. To trigger a failure requires a build of MPI without Fortran enabled, such as OpenMPI with the `--enable-mpi-fortran=no` configure option.

CMakeLists.txt:
```cmake
cmake_minimum_required(VERSION 3.27)

project(TestProject LANGUAGES C Fortran)

find_package(HDF5 NAMES hdf5 REQUIRED COMPONENTS C)

add_executable(test
test.c
test.f90
)

set_target_properties(test PROPERTIES LINKER_LANGUAGE C)

target_link_libraries(test PRIVATE hdf5-shared)
```

test.c:
```c
#include "hdf5.h"

extern double return_1();

int main(void) {
double fortran_value = return_1();
printf("Fortran function returned: %f\n", fortran_value);

// Create HDF5 file
hid_t file_id = H5Fcreate("test.h5", H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);

H5Fclose(file_id);
}
```

test.f90:
```fortran
function return_1() result(val) bind(C, name="return_1")
use iso_c_binding
implicit none
real(c_double) :: val

val = 1.0d0
end function return_1
```

On my machine, I get the output:
```
CMake Error at ${BUILDSYSTEM}/cmake/cmake-4.3.1/share/cmake-4.3/Modules/FindPackageHandleStandardArgs.cmake:290 (message):
Could NOT find MPI (missing: MPI_Fortran_FOUND) (found version "3.1")
Call Stack (most recent call first):
${BUILDSYSTEM}/cmake/cmake-4.3.1/share/cmake-4.3/Modules/FindPackageHandleStandardArgs.cmake:654 (_FPHSA_FAILURE_MESSAGE)
${BUILDSYSTEM}/cmake/cmake-4.3.1/share/cmake-4.3/Modules/FindMPI.cmake:2006 (find_package_handle_standard_args)
${BUILDSYSTEM}/cmake/cmake-4.3.1/share/cmake-4.3/Modules/CMakeFindDependencyMacro.cmake:93 (find_package)
${BUILDSYSTEM}/cmake/cmake-4.3.1/share/cmake-4.3/Modules/CMakeFindDependencyMacro.cmake:125 (__find_dependency_common)
${HOME}/HDF5/cmake/hdf5-config.cmake:124 (find_dependency)
CMakeLists.txt:5 (find_package)
```

Replacing `find_dependency(MPI QUIET REQUIRED)` with `find_dependency(MPI QUIET REQUIRED COMPONENTS C)` in `hdf5-config.cmake.in` appears to fix it, but I don't know enough of HDF5's architecture to know if this will cause problems.

**Expected behavior**
I expect a non-Fortran build of HDF5 to not need `MPI_Fortran`.

**Platform**
- HDF5 commit f010df9fe6de12113a099e9a42230015d5ba7175
- Linux, RHEL 8
- Intel 2024.2.1 (`icx` + `ifort`)
- CMake 4.3.1 + Ninja 1.13.2
- Built with `cmake .. -G Ninja -DHDF5_ENABLE_PARALLEL=ON -DHDF5_BUILD_FORTRAN=OFF`
- OpenMPI 5.0.10 with `--enable-mpi-fortran=no`

We have also tested 2.1.1 and 2.1.0 on various other systems, such as Windows with MS-MPI, which does not provide Fortran bindings, and have had similar issues.