Add missing requirement boost-json to Dockerfile

[josuedhg]

Pull Request Prelude

• I have followed proper The Forgotten Server code styling.
• I have read and understood the contribution guidelines before making this PR.
• I am aware that this PR may be closed if the above-mentioned criteria are not fulfilled.

Changes Proposed

This just add a missing dependency boost-json to Dockerfile
without it running the resulting docker container is going to throw the following error:
Error loading shared library libboost_json.so.1.82.0: No such file or directory (needed by /bin/tfs) Error relocating /bin/tfs: _ZN5boost4json5arrayC1ERKS1_NS0_11storage_ptrE: symbol not found Error relocating /bin/tfs: _ZN5boost4json6objectC1ERKS1_NS0_11storage_ptrE: symbol not found Error relocating /bin/tfs: _ZNK5boost4json6object11if_containsENS_4core17basic_string_viewIcEE: symbol not found Error relocating /bin/tfs: _ZN5boost4json18monotonic_resourceC1EmNS0_11storage_ptrE: symbol not found Error relocating /bin/tfs: _ZN5boost4json5arrayD1Ev: symbol not found Error relocating /bin/tfs: _ZN5boost4json5arrayC1ESt16initializer_listINS0_9value_refEENS0_11storage_ptrE: symbol not found Error relocating /bin/tfs: _ZN5boost4json5parseENS_4core17basic_string_viewIcEERNS_6system10error_codeENS0_11storage_ptrERKNS0_13parse_optionsE: symbol not found Error relocating /bin/tfs: _ZN5boost4json5valueaSENS_4core17basic_string_viewIcEE: symbol not found Error relocating /bin/tfs: _ZN5boost4json5value7destroyEv: symbol not found Error relocating /bin/tfs: _ZN5boost4json5valueC1ERKS1_NS0_11storage_ptrE: symbol not found Error relocating /bin/tfs: _ZN5boost4json9serializeB5cxx11ERKNS0_5valueE: symbol not found Error relocating /bin/tfs: _ZN5boost4json6objectixENS_4core17basic_string_viewIcEE: symbol not found Error relocating /bin/tfs: _ZN5boost4json5valueC1ESt16initializer_listINS0_9value_refEENS0_11storage_ptrE: symbol not found Error relocating /bin/tfs: _ZN5boost4json5valueD1Ev: symbol not found Error relocating /bin/tfs: _ZN5boost4json6objectD1Ev: symbol not found Error relocating /bin/tfs: _ZN5boost4json5array9push_backEONS0_5valueE: symbol not found Error relocating /bin/tfs: _ZN5boost4json6objectC1EOS1_: symbol not found Error relocating /bin/tfs: _ZN5boost4json18monotonic_resourceD1Ev: symbol not found Error relocating /bin/tfs: _ZN5boost4json6object6empty_E: symbol not found Error relocating /bin/tfs: _ZN5boost4json5array6empty_E: symbol not found

Issues addressed: #4890

How to test:
build the container
docker build -t server .

run the container
docker run server

• before changes it will shows the previously mentioned error trace
• after changes it should fail in an elegant way because the config.lua is not available showing the following message
  [Error - ConfigManager::load] cannot open config.lua: No such file or directory ERROR: Unable to load config.lua! No services running. The server is NOT online.