Fix ctest errors after 7.2.5 release

[jzhou77]

By setting the latest version to 7.2.6

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[fdb-windows-ci]

Doxense CI Report for Windows 10

• Commit ID: 696c582
• Result: ✔️ SUCCEEDED
• Build Logs (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr on Linux CentOS 7

• Commit ID: 696c582
• Duration 0:30:37
• Result: ❌ FAILED
• Error: Error while executing command: ctest -j ${NPROC} --no-compress-output -T test --output-on-failure. Reason: exit status 8
• Build Log terminal output (available for 30 days)
• Build Workspace zip file of the working directory (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr-clang on Linux CentOS 7

• Commit ID: 696c582
• Duration 1:11:18
• Result: ✅ SUCCEEDED
• Error: N/A
• Build Log terminal output (available for 30 days)
• Build Workspace zip file of the working directory (available for 30 days)

[flowguru]

its still failing, for instance single_process_fdbcli_tests , multi_process_fdbcli_tests, and fdb_c_unit_tests, they fail for the same reason.

[flowguru]

Traceback (most recent call last):
  File "/codebuild/output/src901673672/src/github.com/apple/foundationdb/tests/TestRunner/tmp_cluster.py", line 223, in <module>
    print(f.read())
  File "/codebuild/output/src901673672/src/github.com/apple/foundationdb/tests/TestRunner/tmp_cluster.py", line 59, in __exit__
    shutil.rmtree(self.tmp_dir)
  File "/opt/rh/rh-python38/root/usr/lib64/python3.8/shutil.py", line 718, in rmtree
    _rmtree_safe_fd(fd, path, onerror)
  File "/opt/rh/rh-python38/root/usr/lib64/python3.8/shutil.py", line 655, in _rmtree_safe_fd
    _rmtree_safe_fd(dirfd, fullname, onerror)
  File "/opt/rh/rh-python38/root/usr/lib64/python3.8/shutil.py", line 675, in _rmtree_safe_fd
    onerror(os.unlink, fullname, sys.exc_info())
  File "/opt/rh/rh-python38/root/usr/lib64/python3.8/shutil.py", line 673, in _rmtree_safe_fd
    os.unlink(entry.name, dir_fd=topfd)
FileNotFoundError: [Errno 2] No such file or directory: 'fdbmonitor.lock'

[flowguru]

discussed offline, the error is for another issue, will fix in another PR

[foundationdb-ci]

Result of foundationdb-pr-cluster-tests on Linux CentOS 7

• Commit ID: 696c582
• Duration 2:04:05
• Result: ❌ FAILED
• Error: Error while executing command: if $fail_test; then exit 1; fi. Reason: exit status 1
• Build Log terminal output (available for 30 days)
• Build Workspace zip file of the working directory (available for 30 days)
• Cluster Test Logs zip file of the test logs (available for 30 days)