- update to 1.7.5

- update to 1.7.5:
* #4924: html search: Upper characters problem in any other languages
* #4932: apidoc: some subpackage is ignored if sibling subpackage contains a
module starting with underscore
* #4863, #4938, #4939: i18n doesn't handle node.title correctly tat used for
contents, topic, admonition, table and section.
* #4913: i18n: literal blocks in bullet list are not translated
* #4962: C++, raised TypeError on duplicate declaration.
* #4825: C++, properly parse expr roles and give better error messages when
(escaped) line breaks are present.
* C++, properly use ``desc_addname`` nodes for prefixes of names.
* C++, parse pack expansions in function calls.
* #4915, #4916: links on search page are broken when using dirhtml builder
* #4969: autodoc: constructor method should not have return annotation
* latex: deeply nested enumerated list which is beginning with non-1 causes
LaTeX engine crashed
* #4978: latex: shorthandoff is not set up for Brazil locale
* #4928: i18n: Ignore dot-directories like .git/ in LC_MESSAGES/
* #4946: py domain: type field could not handle "None" as a type
* #4979: latex: Incorrect escaping of curly braces in index entries
* #4956: autodoc: Failed to extract document from a subclass of the class on
mocked module
* #4973: latex: glossary directive adds whitespace to each item
* #4980: latex: Explicit labels on code blocks are duplicated
* #4919: node.asdom() crashes if toctree has :numbered: option
* #4914: autodoc: Parsing error when using dataclasses without default values
* #4931: autodoc: crashed when handler for autodoc-skip-member raises an error
* #4931: autodoc: crashed when subclass of mocked class are processed by