Use match instead of == for jinja2 filter
Use match instead of == for jinja2 filter

Testing this code, I've found that, on RHEL7 machines, jinja2 is too old
(2.7 rather than 2.8) to have the == filter.  Using match instead.  It
does a bounded regex match, which for version number matching is close
enought for us.

Example:

```
$ ./check-swlib.sh
--ora-swlib-bucket=gs://bmaas-testing-oracle-software/ --ora-version=18
...
TASK [check-swlib : check-swlib | Define Oracle release]
*****************************************************************************************************************************************************************************
ok: [localhost] => (item=18.6.0.0.190416)
ok: [localhost] => (item=18.7.0.0.190716)
ok: [localhost] => (item=18.8.0.0.191015)
ok: [localhost] => (item=18.9.0.0.200114)
ok: [localhost] => (item=18.10.0.0.200414)
ok: [localhost] => (item=18.11.0.0.200714)
ok: [localhost] => (item=18.12.0.0.201020)

TASK [check-swlib : check-swlib| Set base if no release found]
***********************************************************************************************************************************************************************
ok: [localhost]

TASK [check-swlib : check-swlib | Show resolved Oracle release]
**********************************************************************************************************************************************************************
ok: [localhost] => {
    "oracle_rel": "18.12.0.0.201020"
}
```

Ref:
https://stackoverflow.com/questions/31895602/ansible-filter-a-list-by-its-attributes

google/bms-toolkit,google/bms-toolkit