www/w3m: Updated to 0.5.3+git20220429

Upstream changelog from NEWS:
----
Debian's w3m 0.5.3+git20220429

* new features
  - support kitty's APC G graphics protocol with ImageMagick's convert
  - support iTerm2's OSC 1337 graphics protocol
  - new option inline_img_protocol to select the graphics protocol
    (0: w3m-img, 1: OSC 5379, 2: sixel, 3: OSC 1337, 4: APC G)
  - new option ssl_cipher to specify TLSv1.2 ciphers, e.g. DEFAULT:@SECLEVEL=2
  - new option ssl_min_version for OpenSSL 1.1
  - new option -insecure to use insecure SSL config options
  - new option ssl_ca_default, explicitly use OpenSSL default paths by default
  - new option cross_origin_referer, use origin only Referer when cross origin
  - new option localhost_only to restrict connections only to localhost
  - new option disable_center to disable center alignment
  - support brotli content encoding
  - ignore the "-" option to accept `w3m -` as "read from stdin"
  - new configure option --with-cafile to detect CA bundle file
  - support auto-detection for configure --with-migemo
  - add fuzzer for OSS-Fuzz
  - add Italian translation
  - add Swedish translation
* bug fixes
  - prevent index overflow and huge allocation due to Str, libwc, and table
  - prevent integer overflow due to fontstat
  - prevent StrStream memory leak
  - prevent GC warnings of repeated allocation
  - prevent buffer overflow in shiftAnchorPosition
  - prevent buffer overflow READ when parsing Gopher URLs
  - prevent buffer overflow in gotoLine and gotoRealLine
  - prevent warnings when -Wnull-dereference, enabled by default
  - prevent warnings when -Wall, enabled by default
  - prevent warnings from Cppcheck
  - avoid zero length arrays even when GCC
  - fix fail to render over 32767 lines in a table cell
  - disable `<section>` behaves as `<hr>`
  - disable TLSv1.0 and TLSv1.1 by default
  - mention a workaround for SSL error
  - fix manipulation of ASN1_STRING
  - don't include username in Referer
  - don't set Referer when data URI scheme
  - fix broken anchor with link number at EOL
  - fix incorrect query string for `w3mman 7z`
  - drop imlib2-config, use pkg-config
  - improve named character references
  - improve `<dl>` rendering
  - prefer Imlib2 over GTK2 by default
  - replace encodeB with base64_encode to encode null bytes
  - wording fixes for configure --help


(rin)