tests: link atomic to all tests

Not only self_relative_ptr tests use atomics. On some platforms
(e.g. riscv64) -latomic is needed for a few other tests
(pool_cleanup, volatile_state).

[stable-1.11] Ubsan fix

Cast 'this' to integer type instead of casting to pointer type.

Original implementation resulted in the following error for
self_relative_ptr_atomic test:

"runtime error: pointer index expression with base 0x7ffc7773e7c0
overflowed to 0xfffffffffffffffe"

radix_tree: fix use after free

Iterator inside erase() cannot be incremented after calling delete_persistent.
Incrementing checks the value of leaf_->parent which means reading from free'd memory.

Merge stable-1.10 into stable-1.11

Merge stable-1.9 into stable-1.10

CI: use special environment var in GHA for Windows' PATH

The old 'addPath' is depreciated now. For more details see:
https://github.blog/changelog/2020-10-01-github-actions-deprecating-set-env-and-add-path-commands/

Move inline_string and basic_string template helpers out

of a template_helpers.hpp. The template_helpers.hpp file should
not have any dependencies on libpmemobj-cpp headers.

Fix radix_tree::try_emplace

It was not possible to pass to value ctor different number of elements than 1.
Fix this by implementing make_key_args function taking heterogenous key and
variadic args to be passed to value constructor.

The function name is different from make() to avoid ambiguity in emplace().

radix_tree: fix internal find

Fix comparison between n->byte and key.size(). When using pmem::obj::string
or inline_string the behavior was ok (since we always have null terminator
at the end), but we technically access out-of-range memory which can cause
asserts in string_view operator[].

docker: fix auto docs generating - force clean dir

it's required for new branches, where target directory does not exist yet.

CI: fix GHA docs' job - use branches names not tags

update Fedora image for doc job

Radix tree assing val fix

Fix value() function which was creating an empty string (wrong input parameter)
and add testcases for basic_inline_string<uint8_t> and basic_inline_string<wchar_t>
as value types.

Realocating path should be taken for values which are instances
of basic_inline_string<CharT, Traits> (not only for CharT = char).

coloring in IDE was not applied, because of this additional new line

add stable-1.11 to valid branches

tests: string_view_assignment

cmake: look for libpmemobj also when building benchmarks