set the php version in the map for debian module redis to allow installation of the desired version

* Automated using https://github.com/myii/ssf-formula/pull/335

* Automated using https://github.com/myii/ssf-formula/pull/302

* Automated using https://github.com/myii/ssf-formula/pull/296

* Automated using https://github.com/myii/ssf-formula/pull/293

* `fedora-32`
* `fedora-33`
* `opensuse-tumbleweed`
* `oraclelinux-7`
* `oraclelinux-8`
* `ubuntu-20`

* Automated using https://github.com/myii/ssf-formula/pull/292

* Semi-automated using https://github.com/myii/ssf-formula/pull/284

Use method:

1. `rubocop -a --safe`
2. `rubocop -A --safe`
3. Use `rubocop:disable`

```
Offenses:

test/integration/default/controls/config_spec.rb:1:1: C: Style/FrozenStringLiteralComment: Missing frozen string literal
comment.
control 'Php configuration' do
^
test/integration/default/controls/config_spec.rb:4:3: C: Metrics/AbcSize: Assignment Branch Condition size for
test_debian is too high. [<0, 26, 0> 26/17]
(http://c2.com/cgi/wiki?AbcMetric, https://en.wikipedia.org/wiki/ABC_Software_Metric)
  def test_debian ...
  ^^^^^^^^^^^^^^^
test/integration/default/controls/config_spec.rb:4:3: C: Metrics/MethodLength: Method has too many lines. [14/10]
(https://rubystyle.guide#short-methods)
  def test_debian ...
  ^^^^^^^^^^^^^^^
test/integration/default/controls/config_spec.rb:24:3: C: Style/EmptyMethod: Put empty method definitions on a single
line. (https://rubystyle.guide#no-single-line-methods)
  def test_redhat ...
  ^^^^^^^^^^^^^^^
test/integration/default/controls/config_spec.rb:27:3: C: Style/EmptyMethod: Put empty method definitions on a single
line. (https://rubystyle.guide#no-single-line-methods)
  def test_suse ...
  ^^^^^^^^^^^^^
test/integration/default/controls/package_spec.rb:1:1: C: Style/FrozenStringLiteralComment: Missing frozen string
literal comment.
control 'Php package' do
^
test/integration/default/controls/package_spec.rb:4:3: C: Metrics/AbcSize: Assignment Branch Condition size for
test_debian is too high. [<1, 26, 1> 26.04/17] (http://c2.com/cgi/wiki?AbcMetric,
https://en.wikipedia.org/wiki/ABC_Software_Metric)
  def test_debian ...
  ^^^^^^^^^^^^^^^
test/integration/default/controls/package_spec.rb:4:3: C: Metrics/MethodLength: Method has too many lines. [20/10]
(https://rubystyle.guide#short-methods)
  def test_debian ...
  ^^^^^^^^^^^^^^^
test/integration/default/controls/package_spec.rb:21:1: C: Layout/EmptyLinesAroundBlockBody: Extra empty line detected
at block body beginning. (https://rubystyle.guide#empty-lines-around-bodies)
test/integration/default/controls/service_spec.rb:1:1: C: Style/FrozenStringLiteralComment: Missing frozen string
literal comment.
control 'Php service' do
^
test/integration/default/controls/service_spec.rb:16:3: C: Style/EmptyMethod: Put empty method definitions on a single
line. (https://rubystyle.guide#no-single-line-methods)
  def test_redhat ...
  ^^^^^^^^^^^^^^^
test/integration/default/controls/service_spec.rb:19:3: C: Style/EmptyMethod: Put empty method definitions on a single
line. (https://rubystyle.guide#no-single-line-methods)
  def test_suse ...
  ^^^^^^^^^^^^^

7 files inspected, 12 offenses detected, 8 offenses auto-correctable
```

* Automated using https://github.com/myii/ssf-formula/pull/283

* Automated using https://github.com/myii/ssf-formula/pull/50

* Semi-automated using `ssf-formula` (v0.5.0)
* Fix errors shown below:

```bash
php-formula$ $(grep "\- yamllint" .travis.yml | sed -e "s:^\s\+-\s\(.*\):\1:")
./test/integration/default/inspec.yml
  1:1       warning  missing document start "---"  (document-start)

pillar.example
  3:1       warning  missing document start "---"  (document-start)
  7:22      warning  truthy value should be one of [false, true]  (truthy)
  8:22      warning  truthy value should be one of [false, true]  (truthy)
  10:22     warning  truthy value should be one of [false, true]  (truthy)
  16:17     warning  truthy value should be one of [false, true]  (truthy)
  41:12     error    wrong indentation: expected 10 but found 11  (indentation)
  46:27     warning  truthy value should be one of [false, true]  (truthy)
  70:18     warning  truthy value should be one of [false, true]  (truthy)
  74:19     warning  truthy value should be one of [false, true]  (truthy)
  83:22     warning  truthy value should be one of [false, true]  (truthy)
  97:22     warning  truthy value should be one of [false, true]  (truthy)
  107:89    error    line too long (93 > 88 characters)  (line-length)
  118:20    warning  truthy value should be one of [false, true]  (truthy)
  126:14    error    wrong indentation: expected 12 but found 13  (indentation)
  126:23    warning  truthy value should be one of [false, true]  (truthy)
  151:20    warning  truthy value should be one of [false, true]  (truthy)
  177:19    warning  truthy value should be one of [false, true]  (truthy)
  197:25    warning  truthy value should be one of [false, true]  (truthy)
```

* Automated using `ssf-formula` (v0.1.0-rc.1)

* Completes #179
* Fix testing on `develop` images and enable in the matrix