deprecated-copy warnings with GCC 11

using boost log causes warnings inside phoenix. since everything includes the logger, everything also gets this warning when compiling.

```
.conan/data/boost/1.77.0/_/_/package/fb79f387bfd721655dc9bd01764e2c1fb2c4756d/include/boost/phoenix/core/actor.hpp: In instantiation of 'static boost::log::v2s_mt_posix::expressions::aux::make_output_actor, RightT, ValueT, false>::type boost::log::v2s_mt_posix::expressions::aux::make_output_actor, RightT, ValueT, false>::make(const ActorT&, const RightT&) [with ActorT = boost::phoenix::actor; LeftExprT = boost::proto::exprns_::basic_expr >, 0>; RightT = boost::log::v2s_mt_posix::expressions::attribute_actor; ValueT = boost::log::v2s_mt_posix::trivial::severity_level; boost::log::v2s_mt_posix::expressions::aux::make_output_actor, RightT, ValueT, false>::type = boost::phoenix::actor >, 0> >, boost::log::v2s_mt_posix::trivial::severity_level, boost::log::v2s_mt_posix::fallback_to_none, boost::log::v2s_mt_posix::to_log_fun > >]':
.conan/data/boost/1.77.0/_/_/package/fb79f387bfd721655dc9bd01764e2c1fb2c4756d/include/boost/log/detail/generate_overloads.hpp:27:1: required from 'typename boost::log::v2s_mt_posix::expressions::aux::make_output_actor, boost::log::v2s_mt_posix::expressions::attribute_actor >::type boost::log::v2s_mt_posix::expressions::operator<<(const boost::phoenix::actor&, boost::log::v2s_mt_posix::expressions::attribute_actor&&) [with LeftExprT = boost::proto::exprns_::basic_expr >, 0>; T = boost::log::v2s_mt_posix::trivial::severity_level; FallbackPolicyT = boost::log::v2s_mt_posix::fallback_to_none; TagT = void; typename boost::log::v2s_mt_posix::expressions::aux::make_output_actor, boost::log::v2s_mt_posix::expressions::attribute_actor >::type = boost::phoenix::actor >, 0> >, boost::log::v2s_mt_posix::trivial::severity_level, boost::log::v2s_mt_posix::fallback_to_none, boost::log::v2s_mt_posix::to_log_fun > >; typename boost::log::v2s_mt_posix::expressions::attribute_actor::value_type = boost::log::v2s_mt_posix::trivial::severity_level]'
.conan/data/boost/1.77.0/_/_/package/fb79f387bfd721655dc9bd01764e2c1fb2c4756d/include/boost/log/utility/setup/formatter_parser.hpp:108:51: required from
'boost::log::v2s_mt_posix::basic_formatter_factory::formatter_type boost::log::v2s_mt_posix::basic_formatter_factory::create_formatter(const boost::log::v2s_mt_posix::attribute_name&, const args_map&) [with CharT = char; AttributeValueT = boost::log::v2s_mt_posix::trivial::severity_level; boost::log::v2s_mt_posix::basic_formatter_factory::formatter_type = boost::log::v2s_mt_posix::basic_formatter; boost::log::v2s_mt_posix::basic_formatter_factory::args_map = std::map, std::basic_string >]'
.conan/data/boost/1.77.0/_/_/package/fb79f387bfd721655dc9bd01764e2c1fb2c4756d/include/boost/log/utility/setup/formatter_parser.hpp:106:20: required from here
.conan/data/boost/1.77.0/_/_/package/fb79f387bfd721655dc9bd01764e2c1fb2c4756d/include/boost/phoenix/core/actor.hpp:133:12: warning: implicitly-declared 'boost::proto::exprns_::expr >, 0> >, boost::log::v2s_mt_posix::trivial::severity_level, boost::log::v2s_mt_posix::fallback_to_none, boost::log::v2s_mt_posix::to_log_fun > >, 0>::expr(const boost::proto::exprns_::expr >, 0> >, boost::log::v2s_mt_posix::trivial::severity_level, boost::log::v2s_mt_posix::fallback_to_none, boost::log::v2s_mt_posix::to_log_fun > >, 0>&)' is deprecated [-Wdeprecated-copy]
```

```
$ /opt/rh/devtoolset-11/root/bin/g++ -v
Using built-in specs.
COLLECT_GCC=/opt/rh/devtoolset-11/root/bin/g++
COLLECT_LTO_WRAPPER=/opt/rh/devtoolset-11/root/usr/libexec/gcc/x86_64-redhat-linux/11/lto-wrapper
Target: x86_64-redhat-linux
Configured with: ../configure --enable-bootstrap --enable-languages=c,c++,fortran,lto --prefix=/opt/rh/devtoolset-11/root/usr --mandir=/opt/rh/devtoolset-11/root/usr/share/man --infodir=/opt/rh/devtoolset-11/root/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-shared --enable-threads=posix --enable-checking=release --enable-multilib --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-gcc-major-version-only --with-linker-hash-style=gnu --with-default-libstdcxx-abi=gcc4-compatible --enable-plugin --enable-initfini-array --with-isl=/builddir/build/BUILD/gcc-11.2.1-20220127/obj-x86_64-redhat-linux/isl-install --enable-gnu-indirect-function --with-tune=generic --with-arch_32=x86-64 --build=x86_64-redhat-linux
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 11.2.1 20220127 (Red Hat 11.2.1-9) (GCC)
```