Log Message:
tex-[ab]*: update to texlive 2020 versions

tex-acronym{,-doc} to 1.47
tex-aleph to 0.2.54276
tex-amsmath{,-doc} to 2.17a.53640
tex-apa6{,-doc} to 2.34
tex-appendix{,-doc} to 1.2c
tex-babel{,-doc} to 3.42
tex-babel-french to 3.5h
tex-babel-greek to 1.9j
tex-babel-italian to 1.4.03
tex-babel-serbian to 2.0a
tex-babel-serbianc to 3.0a
tex-beamer{,-doc} to 3.57
tex-biblatex{,-doc} to 3.14
tex-biblatex-apa{,-doc} to 9.10
tex-biblatex-ieee{,-doc} to 1.3b
tex-booktabs{,-doc} to 1.61803398
tex-breqn to 0.98j
tex-atbegshi{,-doc} version 1.19
tex-kvoptions{,-doc} version 3.13
tex-pdftexcmds{,-doc} version 0.31