refactor (CI): use ready-made softprops/action-gh-release

refactor (CI): use ready-made softprops/action-gh-release

Merge pull request DIRACGrid#567 from TaykYoku/v4r3_patch-5

[v4r3] release v4r3p5, notes

Merge pull request DIRACGrid#567 from TaykYoku/v4r3_patch-5

[v4r3] release v4r3p5, notes

Merge pull request DIRACGrid#560 from TaykYoku/v4r3_patch-4

[v4r3] new release v4r3p4, notes

Merge pull request DIRACGrid#560 from TaykYoku/v4r3_patch-4

[v4r3] new release v4r3p4, notes

Merge pull request DIRACGrid#558 from TaykYoku/v4r3_patch-3

[v4r3] release v4r3p3, notes

Merge pull request DIRACGrid#556 from TaykYoku/v4r3_patch-2

[v4r3] new release v4r3p2, notes

Merge pull request DIRACGrid#539 from TaykYoku/v4r4_useBaseRequestHan…

…dler

[v5r0] use BaseRequestHandler for Accounting

Merge pull request DIRACGrid#539 from TaykYoku/v4r4_useBaseRequestHan…

…dler

[v5r0] use BaseRequestHandler for Accounting