Preparation work for 4.32 (2024-06) and open master for development

[MohananRahul]

This preparation work involves the following tasks. For previous issue please refer to #1557

• Create R4_31_maintenance branch #1843
• Update R4_31 maintenance branch with release version for 4.31+ changes #1883
• Move 4.31-I builds to R4_31_maintenance branch #1845
• Update Parent pom and target sdk deployment jobs for R4_31_maintenance branch #1847
• Create new test jobs for 4.32 #1850
• Configure SWT build scripts for 4.32 #1867
• Splash Screen for 4.32 (2024-06) #1849
• Create 4.32-I-builds repo #1852
• POM and product version changes for 4.32 release #1844
• Update product version number to 4.32 across build scripts #1854
• Move previous version to 4.31RC2 across build scripts #1857
• Update version number in Mac's Eclipse.app for 4.32 #1859
• Clean forceQualifierUpdate files for doc bundles #1860
• Cleanup approved api list #1863
• Update builds and repo cleanup scripts for 4.32 #1865
• Create new I-build job for 4.32 release #1873
• Update check composites script to verify 4.32 repositories #1869
• Update Comparator repo and eclipse run repo to 4.32-I-builds repo #1871
• Version bumps for 4.32 stream #1862
• Update previous release version to 4.31 GA across build scripts #1894
• Update build calendar for platform 4.32 release
• Deploy ecj compiler from 4.31 GA and use it for 4.32 M1 build
• Update generic repos I-builds, Y-builds, P-builds to point to 4.32 repos

[iloveeclipse]

Anything missing here?
I see a problem that I can't install equinox launcher executables, see eclipse-equinox/equinox#552