Merge #20901: [0.21.1]: rc1 Backports

5a2d98c640 doc: Remove outdated comment (Hennadii Stepanov)
8426e3a8a1 fuzz: Bump FuzzedDataProvider.h (MarcoFalke)
14e3f2a1c9 fuzz: Bump FuzzedDataProvider.h (MarcoFalke)
a48c9d3161 fuzz: Update FuzzedDataProvider.h from upstream (LLVM) (practicalswift)
6746cd078b doc: add signet to doc/bitcoin-conf.md (Jon Atack)
58975d5c0a doc: add signet to share/examples/bitcoin.conf (Jon Atack)
b35711efde Update vcpkg checkout commit. (Aaron Clauson)
3a12672419 GUI: Write PSBTs to file with binary mode (Andrew Chow)
36ecf5eb87 tests: Test that a fully signed tx given to signrawtx is unchanged (Andrew Chow)
4ef1e4bd40 test: disallow sendtoaddress/sendmany when private keys disabled (Jon Atack)
d6b5eb5fcc Disallow sendtoaddress and sendmany when private keys disabled (Andrew Chow)
08dada8456 util: Disallow negative mocktime (MarcoFalke)
95218ee95c net: Avoid UBSan warning in ProcessMessage(...) (practicalswift)
4607019798 fix the unreachable code at feature_taproot (Bruno Garcia)
6dc58e9945 qt: Use "fusion" style on macOS Big Sur with old Qt (Hennadii Stepanov)
e2ebc8567a raise helpMessageDialog (randymcmillan)
a98f211940 Fix MSVC build after gui#176 (Hennadii Stepanov)
bdc64c9030 qt: Stop the effect of hidden widgets on the size of QStackedWidget (Hennadii Stepanov)
7bc4498234 qt: Fix TxViewDelegate layout (Hennadii Stepanov)
b7086e69ff qt: Add TransactionOverviewWidget class (Hennadii Stepanov)
0dba346a56 qt: Use layout manager for Create Wallet dialog (Hennadii Stepanov)
7bf3ed495b Bugfix: GUI: Restore SendConfirmationDialog button default to "Yes" (Luke Dashjr)
bdce029191 test: add test for banning of non-IP addresses (Vasil Dimov)
c33fbab25c net: allow CSubNet of non-IP networks (Vasil Dimov)

Pull request description:

  Current backports for *0.21.1*.

  One conflict was in the test case.

ACKs for top commit:
  ajtowns:
    ACK 5a2d98c640 -- checked 'rebased-from' patches are in master, and rebased patches are clean rebases (except for the first one which changes `""s` to `std::string("")` to avoid c++17 dependency). commits seem fine, but haven't reviewed in detail.
  fanquake:
    ACK 5a2d98c640 - branched off `0.21` and redid the backports. Minor conflict in c33fbab25c. The diff between my branch and #20901 was just in release notes, `_CLIENT_VERSION_RC` (#20901 branched before 95ea54ba08) and #21490 which has already been merged into `0.21`.

Tree-SHA512: 75d16d3cf9066a45759758b8185dc3b9dad6a6102c2ac9921f758a310e48d5d3122f0dafa515df42475235fc66a42cc04dd156ee1e61c86a1238bd11707642ea

doc/bitcoin-conf.md

@@ -27,7 +27,7 @@ Comments may appear in two ways:
 ### Network specific options
 
 Network specific options can be:
-- placed into sections with headers `[main]` (not `[mainnet]`), `[test]` (not `[testnet]`) or `[regtest]`;
+- placed into sections with headers `[main]` (not `[mainnet]`), `[test]` (not `[testnet]`), `[signet]` or `[regtest]`;
 - prefixed with a chain name; e.g., `regtest.maxmempool=100`.
 
 Network specific options take precedence over non-network specific options.

doc/build-windows.md

@@ -103,7 +103,7 @@ Build using:
     cd depends
     make HOST=x86_64-w64-mingw32
     cd ..
-    ./autogen.sh # not required when building from tarball
+    ./autogen.sh
     CONFIG_SITE=$PWD/depends/x86_64-w64-mingw32/share/config.site ./configure --prefix=/
     make
     sudo bash -c "echo 1 > /proc/sys/fs/binfmt_misc/status" # Enable WSL support for Win32 applications.