[influxdb-cxx] Update to v0.7.1

[MonicaLiu0311]

Fixes #31092.

• Update to v0.7.1.

• The upstream dependency curl has been removed, and cpr has been added, see: v0.7.1#installation.

• LNK2001 and LNK2019 occur because InfluxDB_EXPORTS is not defined during dynamic linking, add fix-dllexports.patch to fix it. Reported upstream: offa/influxdb-cxx#194.

  TCP.cxx.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl influxdb::InfluxDBException::InfluxDBException(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (__imp_??0InfluxDBException@influxdb@@QEAA@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z)
  InfluxDB.cxx.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __cdecl influxdb::Point::~Point(void)" (__imp_??1Point@influxdb@@QEAA@XZ) referenced in function "public: void * __cdecl influxdb::Point::`scalar deleting destructor'(unsigned int)" (??_GPoint@influxdb@@QEAAPEAXI@Z)
  

• Changes comply with the maintainer guide
• SHA512s are updated for each updated download
• The "supports" clause reflects platforms that may be fixed by this new version
• Any fixed CI baseline entries are removed from that file.
• Any patches that are no longer applied are deleted from the port's directory.
• The version database is fixed by rerunning ./vcpkg x-add-version --all and committing the result.
• Only one version is added to each modified port's versions file.

• All features are tested successfully in the following triplet:

x86-windows
x64-windows
x64-windows-static

• The usage test passed (header files found):

influxdb-cxx provides CMake targets:

    # this is heuristically generated, and may not be correct
    find_package(InfluxDB CONFIG REQUIRED)
    target_link_libraries(main PRIVATE InfluxData::InfluxDB)

[MonicaLiu0311]

The commit that caused the error has been located, but the upstream has not found the reason for the time being and cannot be modified, so continue this PR.