OCCT speedups and fixes #5147

Job	Run time
external-build	1m 44s
Update LFS data cache	12s
android (armeabi-v7a)	1m 36s
android (arm64-v8a)	1m 41s
android (x86)	1m 42s
webassembly	1m 38s
android (x86_64)	1m 44s
coverage	4m 32s
linux (commit, standard)	5m 21s
macos_arm (commit, no-bundle)	3m 33s
linux (v9.3.0, standard)	5m 7s
macos (commit, no-bundle)	9m 31s
macos_arm (v9.3.0, no-bundle)	3m 34s
linux (v9.2.6, standard)	4m 19s
python-packaging (ubuntu)	2m 47s
macos (v9.3.0, no-bundle)	1h 2m 10s
macos_arm (v9.2.6, no-bundle)	3m 20s
linux (v9.1.0, standard)	4m 14s
macos (v9.2.6, no-bundle)	12m 32s
python-packaging (windows)	4m 20s
macos_arm (commit, bundle)	4m 2s
macos (commit, bundle)	10m 21s
linux (v9.0.0, standard)	2m 55s
python-packaging (macos)	2m 47s
linux (headless, commit, raytracing, optional-deps, no-exclude-deprecated, egl)	4m 41s
sanitizer (address)	6m 26s
linux (exclude_deprecated, commit, raytracing, optional-deps, exclude-deprecated, no-egl)	4m 40s
static-analysis	3m 15s
sanitizer (thread)	10m 15s
windows (commit)	6m 22s
linux (no_optional_deps, commit, no-raytracing, no-optional-deps, no-exclude-deprecated, no-egl)	3m 7s
sanitizer (undefined)	4m 42s
windows (v9.3.0)	6m 36s
windows (v9.2.6)	6m 7s
	3h 31m 53s

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