COMP: Update DCMTK to add printf format attribute in offile.h

[hjmjohnson]

Updates the vendored DCMTK to add __attribute__((format(printf, ...))) to OFFile::fprintf/OFFile::vfprintf, fixing two clang -Wformat-nonliteral warnings emitted in every ITK translation unit that includes offile.h (e.g. via itkDCMTKFileReader.h).

Details

• Fork commit: InsightSoftwareConsortium/DCMTK@84c8047, fast-forwarded onto for/itk-dcmtk-3.7.0-ccfd10b.
• The attribute marks the format parameter as a valid forwarding target (silencing the wrapper-internal false positive) and enables format/argument checking at all call sites.
• Chosen over pragma suppression so the fix is acceptable to upstream DCMTK, whose master has the same code; the same patch is being submitted upstream.
• Verified locally: full ITKIODCMTKTestDriver rebuild (all of DCMTK + ITK IODCMTK tests) against the new pin with zero warnings/errors.

[greptile-apps]

Greptile Summary

This PR updates the vendored DCMTK pin for a compile-warning fix. The main changes are:

• Advances the DCMTK fork commit hash on the same ITK DCMTK 3.7.0 branch.
• Documents the added OFFile printf-format attribute patch in the local patch list.

Confidence Score: 5/5

This looks safe to merge.

No blocking issues found in the changed code.

No files need attention.

T-Rex Logs

What T-Rex did

• A post-change DCMTK pin validation run was executed, and the after-log captures missing build tools, the parsed URL and tag, a successful curl fetch, and header snippets showing the format(printf, ...) macro and annotations.
• A validation script named dcmtk-pin-validation-script.sh was generated and used to reproduce the validation run that produced the after-log.
• There was no pre-change baseline checkout available in this sandbox, so no before-run comparison could be performed.

_{Ran code and verified through T-Rex}

Important Files Changed

Filename	Overview
Modules/ThirdParty/DCMTK/DCMTKGitTag.cmake	Updates the DCMTK FetchContent commit pin and patch-list comment while keeping the same release-anchored fork branch.

_{Reviews (1): Last reviewed commit: "COMP: Update DCMTK to add printf format ..." | Re-trigger Greptile}

[hjmjohnson]

Closing as obsolete — this patch already landed on main via #6548, which advanced the DCMTK pin past the commit this PR pins.

Why this is superseded (and why rebasing it would regress main)

This PR pins DCMTK at 84c8047d ("COMP: Add printf format attribute to OFFile printf wrappers"). #6548 moved main to 554b7447, one commit further along the same for/itk-dcmtk-3.7.0-ccfd10b branch:

554b7447  COMP: Use single export() call to fix namespace corruption   <- main's pin
84c8047d  COMP: Add printf format attribute to OFFile printf wrappers  <- this PR's pin
4ac9b448  Merge pull request #2 from blowekamp/use_dcmtk_override

84c8047d is an ancestor of 554b7447, and ofstd/include/dcmtk/ofstd/offile.h is byte-identical between the two pins — OFFILE_FORMAT_PRINTF is present in main's pinned tree (offile.h:59, applied at :901 and :917).

Because DCMTK_GIT_TAG is a single value, the merge conflict here is not reconcilable by keeping both sides: resolving in favor of this PR would move the pin backwards to 84c8047d and silently revert the namespace-corruption fix. Hence closing rather than rebasing.

The green CI on this PR predates #6548 and reflects the older base.