Remove pcre from toolchain, libcap-ng: update to 0.8.4, swig: update to 4.2.1

[BettyRain]

Merge Checklist

All boxes should be checked before merging the PR (just tick any boxes which don't apply to this PR)

• [X] The toolchain has been rebuilt successfully (or no changes were made to it)
• [X] The toolchain/worker package manifests are up-to-date
• [X] Any updated packages successfully build (or no packages were changed)
• [X] Packages depending on static components modified in this PR (Golang, *-static subpackages, etc.) have had their Release tag incremented.
• [X] Package tests (%check section) have been verified with RUN_CHECK=y for existing SPEC files, or added to new SPEC files
• [X] All package sources are available
• [X] cgmanifest files are up-to-date and sorted (./cgmanifest.json, ./toolkit/scripts/toolchain/cgmanifest.json, .github/workflows/cgmanifest.json)
• [X] LICENSE-MAP files are up-to-date (./SPECS/LICENSES-AND-NOTICES/data/licenses.json, ./SPECS/LICENSES-AND-NOTICES/LICENSES-MAP.md, ./SPECS/LICENSES-AND-NOTICES/LICENSE-EXCEPTIONS.PHOTON)
• [X] All source files have up-to-date hashes in the *.signatures.json files
• [X] sudo make go-tidy-all and sudo make go-test-coverage pass
• [X] Documentation has been updated to match any changes to the build system
• [X] Ready to merge

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Summary

What does the PR accomplish, why was it needed? Remove pcre from toolchain and move toolchain packages to pcre2

Change Log

• Remove pcre from toolchain files
• Move pcre2 installation earlier in build_official_toolchain_rpms.sh
• Move glib and libselinux to pcre2
• Update swig to 4.2.1 and move it to pcre2
• Update libcap-ng to support new swig

Does this affect the toolchain?

YES

Test Methodology

• Buddy build id: 549609
• Full build id: 549640

[BettyRain]

Successful Toolchain AMD: 548770 Successful Toolchain ARM64: 548771

[BettyRain]

New successful AMD toolchain: 549647 ARM64 toolchain: 549648

[BettyRain]

No toolchain conflicts: AMD build: 549693 ARM64 build: 549702