Merge bitcoin/bitcoin#32573: ci: Avoid && dropping errors

fab97f5 ci: Avoid && dropping errors (MarcoFalke)

Pull request description:

  In bash, `&&` will ignore errexit. This can lead to silently ignoring errors. Compare the output of:

  ```
  $ bash -c 'set -xe;   false && false   ; true; echo $?'
  + false
  + true
  + echo 0
  0
  ```

  In theory this could be fixed by using a subshell:

  ```
  $ bash -c 'set -xe; ( false && false ) ; true; echo $?'
  + false
  ```

  However, it is easier to just remove the `&&`.

  This was introduced in  commit faa807b

ACKs for top commit:
  janb84:
    Code review ACK bitcoin/bitcoin@fab97f5
  hebasto:
    ACK fab97f5.
  laanwj:
    ACK fab97f5

Tree-SHA512: 9d034829e03ef3aefdaad82c3cab59bf3fe18529762271c1ad3c838357e337e94bd403b77e30c0cf69715254b65addff6d12f2fb497d7a0e2cdcbcbf78858d47

Author: fanquake

.github/ci-test-each-commit-exec.sh

@@ -14,6 +14,8 @@ echo "Running test-one-commit on $( git log -1 )"
 # Use clang++, because it is a bit faster and uses less memory than g++
 CC=clang CXX=clang++ cmake -B build -DWERROR=ON -DWITH_ZMQ=ON -DBUILD_GUI=ON -DBUILD_BENCH=ON -DBUILD_FUZZ_BINARY=ON -DWITH_USDT=ON -DCMAKE_CXX_FLAGS='-Wno-error=unused-member-function'
 
-cmake --build build -j "$( nproc )" && ctest --output-on-failure --stop-on-failure --test-dir build -j "$( nproc )"
+cmake --build build -j "$( nproc )"
+
+ctest --output-on-failure --stop-on-failure --test-dir build -j "$( nproc )"
 
 ./build/test/functional/test_runner.py -j $(( $(nproc) * 2 )) --combinedlogslen=99999999