make version regex in OpenSSL wrapper easyblock less strict (version string does not always end with a letter)

[akesandgren]

(created using eb --new-pr)

[akesandgren]

Test report by @akesandgren

Overview of tested easyconfigs (in order)

• SUCCESS OpenSSL-1.1.eb

Build succeeded for 1 out of 1 (1 easyconfigs in total)
b-an02.hpc2n.umu.se - Linux Ubuntu 20.04, x86_64, Intel(R) Xeon(R) CPU E5-2690 v4 @ 2.60GHz, Python 3.8.10
See https://gist.github.com/fe9346f89eb97f4deb7c3180250e837e for a full test report.

[akesandgren]

Without this fix it fails to correctly detect that Ubuntu Bionic libssl1.1 version 1.1.1-1ubuntu2.1~18.04.13 really is a 1.1.1 version.
The version string in libssl.so is:

strings /usr/lib/x86_64-linux-gnu/libssl.so.1.1 | grep OpenSSL
OpenSSL 1.1.1  11 Sep 2018

[akesandgren]

Test report by @akesandgren

Overview of tested easyconfigs (in order)

• SUCCESS OpenSSL-1.1.eb

Build succeeded for 1 out of 1 (1 easyconfigs in total)
skalman.hpc2n.umu.se - Linux ubuntu 18.04, x86_64, Intel(R) Core(TM) i7-8565U CPU @ 1.80GHz, Python 3.6.9
See https://gist.github.com/a2977a2cf13853fc598f608acaaf4912 for a full test report.

[boegel]

Test report by @boegel

Overview of tested easyconfigs (in order)

• SUCCESS OpenSSL-1.1.eb

Build succeeded for 1 out of 1 (1 easyconfigs in total)
node2633.swalot.os - Linux centos linux 7.9.2009, x86_64, Intel(R) Xeon(R) CPU E5-2660 v3 @ 2.60GHz (haswell), Python 3.6.8
See https://gist.github.com/4e01ec8237eb7392a58b5fe6a6858da5 for a full test report.

[boegel]

lgtm

[boegel]

Test report by @boegel

Overview of tested easyconfigs (in order)

• SUCCESS OpenSSL-1.1.eb

Build succeeded for 1 out of 1 (1 easyconfigs in total)
node3530.doduo.os - Linux RHEL 8.2, x86_64, AMD EPYC 7552 48-Core Processor (zen2), Python 3.6.8
See https://gist.github.com/f2016200f7d927364543a46ccad3671c for a full test report.