emulators/linux_base-c7: Various updates

bash-4.2.46-35.el7_9
glib2-2.56.1-9.el7_9
glibc-2.17-326.el7_9
krb5-libs-1.15.1-55.el7_9
nss-softokn-freebl-3.79.0-4.el7_9
openssl-libs-1.0.2k-25.el7_9
xz-libs-5.2.2-2.el7_9
zlib-1.2.7-20.el7_9