Change default threshold to 0.04 for image comparison #7418

Job	Run time
Update LFS data cache	1m 8s
external-build	2m 36s
android (armeabi-v7a)	2m 57s
android (arm64-v8a)	3m 2s
android (x86)	2m 47s
android (x86_64)	2m 41s
macos (commit)	15m 43s
macos (v9.4.0)	23m 16s
linux (commit, standard)	9m 3s
macos (v9.3.1)	13m 25s
linux (v9.4.0, standard)	9m 20s
windows (commit, no-static)	15m 3s
macos_arm (commit, no-bundle, no-static)	7m 28s
macos (v9.2.6)	15m 22s
windows (v9.4.0, no-static)	14m 36s
linux (v9.3.1, standard)	6m 31s
macos_arm (v9.4.0, no-bundle, no-static)	8m 1s
windows (v9.3.1, no-static)	10m 35s
linux (v9.2.6, standard)	5m 57s
macos_arm (v9.3.1, no-bundle, no-static)	7m 8s
windows (v9.2.6, no-static)	10m 14s
linux (egl, commit, raytracing, optional-deps, no-exclude-deprecated, egl, no-static)	8m 56s
windows (commit, static)	14m 1s
macos_arm (commit, bundle, no-static)	10m 10s
linux (osmesa, commit, raytracing, optional-deps, no-exclude-deprecated, osmesa, no-static)	8m 51s
macos_arm (commit, no-bundle, static)	7m 44s
linux (exclude_deprecated, commit, raytracing, optional-deps, exclude-deprecated, auto, no-static)	9m 7s
linux (no_optional_deps, commit, no-raytracing, no-optional-deps, no-exclude-deprecated, auto, no...	6m 11s
coverage	8m 47s
linux (static_libs, commit, no-raytracing, optional-deps, no-exclude-deprecated, auto, static)	8m 38s
python-packaging (ubuntu-latest)	4m 2s
python-packaging (windows-latest)	5m 51s
sanitizer (address)	12m 19s
static-analysis	7m 49s
sanitizer (thread)	13m 44s
python-packaging (macos-13)	4m 32s
sanitizer (undefined)	10m 29s
	5h 28m 4s

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