nghttp2: bump to 1.41.0

nghttp2: bump to 1.41.0

8f7b008b Update bash_completion
83086ba9 Update manual pages
c3b46625 Merge pull request from GHSA-q5wr-xfw9-q7xr
3eecc2ca Bump version number to v1.41.0, LT revision to 34:0:20
881c060d Update AUTHORS
f8da73bd Earlier check for settings flood
336a98fe Implement max settings option
ef415836 Revert "Add missing connection error handling"
979e6c53 Merge pull request #1459 from nghttp2/proxyprotov2
b7d16101 Add missing connection error handling
cd53bd81 Merge pull request #1460 from gportay/patch-1
e5625b8c Fix doc
c663349f integration: Add PROXY protocol v2 tests
854e9fe3 nghttpx: Always call init_forwarded_for
c60ea227 Update doc
49cd8e6e nghttpx: Add PROXY-protocol v2 support
3b17a659 Merge pull request #1453 from Leo-Neat/master
600fcdf5 Merge pull request #1455 from xjtian/long_serials
4922bb41 static_cast size parameter in StringRef constructor to size_t
aad86975 Fix get_x509_serial for long serial numbers
dc7a7df6 Adding CIFuzz
b3f85e2d Merge pull request #1444 from nghttp2/fix-recv-window-flow-control-issue
ffb49c6c Merge pull request #1435 from geoffhill/master
2ec58551 Fix receiving stream data stall
459df42b Merge pull request #1442 from nghttp2/upgrade-llhttp
a4c1fed5 Bump llhttp to 2.0.4
866eadb5 Enable session_create_idle_stream test, fix errors
5e13274b Fix typo
e0d7f7de h2load: Allow port in --connect-to
df575f96 h2load: add --connect-to option
1fff7379 clang-format-9
b40c6c86 Merge pull request #1418 from vszakats/patch-1
9bc2c75e lib/CMakeLists.txt: Make hard-coded static lib suffix optional
2d5f7659 Bump up version number to 1.41.0-DEV

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
Note this is cherry-pick from master. It fixes CVE-2020-11080
and  https://github.com/nxhack/openwrt-node-packages/issues/679

Signed-off-by: Jan Pavlinec <jan.pavlinec@nic.cz>