uclient: update to Git HEAD (2026-06-07)

uclient: update to Git HEAD (2026-06-07)

f227ab4f1285 uclient: fix memory leak of url when backend alloc fails
645236607a3d uclient: free proxy_url in uclient_free
53d2d11fb00d uclient-http: fix NULL deref when digest WWW-Authenticate lacks params
0ba1b8718be5 ucode: check calloc return in uc_uclient_new
5cb19466d076 uclient-fetch: reset redirect counter per request
568c447950c1 uclient-fetch: retry short writes and surface errors
4c4a61a69ac3 uclient-fetch: use strtoull to parse Content-Length
440ca260622d uclient-http: validate Content-Length and chunk sizes from the server
8658324bd234 uclient: cast to unsigned char before ctype classifications
bf403fa0f8e5 uclient-fetch: reject CR in --header values
ec47f4176b1e uclient-fetch: always allocate auth_str and free it on exit
391dacd10d31 uclient-http: fail digest auth when the cnonce cannot be randomized
ba1f4311b099 ucode: clamp read length to the size of the static buffer
0ba47f319b09 uclient-fetch: advance to the next URL between requests
9dd0055d527d uclient: initialize *port for unknown address families
f816506651d5 uclient-http: start digest nonce count at 1
9b9b2da40835 uclient-http: fix 2-byte buffer undercount in digest add_field
80fb1e5ee68b ucode: avoid double-free of SSL context on ssl_init error
d44fb561bbcf ucode: don't clear an unrelated registry slot on free
02562403d2a3 uclient-fetch: close the output file before fetching the next URL
4a63561d0012 uclient-http: initialize fd to -1 so a failed connect can't close stdin
428ae8342118 uclient: cancel pending timers in uclient_free()
ffd8db308289 uclient-fetch: guard SSL debug setup against a missing SSL context
9f4db039a263 ucode: release callback argument references
d2af92b0aad9 uclient-http: resolve redirects against the proxy target URL
5dddda023267 uclient-utils: avoid out-of-bounds pointer in get_url_filename
8507588e7ce7 uclient-http: use the proxy target URL for HTTP authentication
322c89c6ca0a uclient-http: retry 401 auth for all body-less request methods
db3bb00ddda7 uclient-http: accept unquoted digest auth parameter values
5ce9983b2a11 uclient-http: follow 303 and 308 redirects
070c868486dc uclient-fetch: finalize request on invalid 206 Content-Range
83659a5a9bc1 uclient-fetch: concatenate multiple URLs into a single -O file
43bed2753998 ucode: don't leak string references in status()/get_headers()
03b17e4fc793 uclient-fetch: attach credentials to the proxy target, not the proxy
74c07b12f7ab uclient-fetch: don't run the progress meter in spider mode
daad21fa2c17 uclient-fetch: handle init_request failure on the 204 resume retry

Link: https://github.com/openwrt/openwrt/pull/23693
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>