util/archutil: re-generate to fix validation for mips64

[thaJeztah]

validation was failing; not sure what introduced it though;

 > [validate 1/1] RUN --mount=type=bind,target=.,rw     --mount=type=bind,from=generate,source=/out,target=/generated-files <<EOT (set -e...):
0.379 ERROR: The result of archutil differs. Please update with "make archutil"
0.379  M util/archutil/mips64_binary.go
0.379  M util/archutil/mips64le_binary.go
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archutil.Dockerfile:116
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 115 |     FROM base AS validate
 116 | >>> RUN --mount=type=bind,target=.,rw \
 117 | >>>     --mount=type=bind,from=generate,source=/out,target=/generated-files <<EOT
 118 | >>>   set -e
 119 | >>>   git add -A
 120 | >>>   if [ "$(ls -A /generated-files)" ]; then
 121 | >>>     cp -rf /generated-files/* ./util/archutil
 122 | >>>   fi
 123 | >>>   diff=$(git status --porcelain -- util/archutil)
 124 | >>>   if [ -n "$diff" ]; then
 125 | >>>     echo >&2 'ERROR: The result of archutil differs. Please update with "make archutil"'
 126 | >>>     echo "$diff"
 127 | >>>     exit 1
 128 | >>>   fi
 129 | >>> EOT
 130 |
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ERROR: failed to solve: process "/bin/sh -c   set -e\n  git add -A\n  if [ \"$(ls -A /generated-files)\" ]; then\n    cp -rf /generated-files/* ./util/archutil\n  fi\n  diff=$(git status --porcelain -- util/archutil)\n  if [ -n \"$diff\" ]; then\n    echo >&2 'ERROR: The result of archutil differs. Please update with \"make archutil\"'\n    echo \"$diff\"\n    exit 1\n  fi\n" did not complete successfully: exit code: 1