[stable-2.8] Add RHEL 8.1b to the Shippable test matrix.

(cherry picked from commit 811127d64d)

Co-authored-by: Matt Clay <matt@mystile.com>

shippable.yml

@@ -81,6 +81,7 @@ matrix:
     - env: T=osx/10.11/1
     - env: T=rhel/7.6/1
     - env: T=rhel/8.0/1
+    - env: T=rhel/8.1b/1
     - env: T=freebsd/11.1/1
     - env: T=freebsd/12.0/1
     - env: T=linux/centos6/1
@@ -95,6 +96,7 @@ matrix:
     - env: T=osx/10.11/2
     - env: T=rhel/7.6/2
     - env: T=rhel/8.0/2
+    - env: T=rhel/8.1b/2
     - env: T=freebsd/11.1/2
     - env: T=freebsd/12.0/2
     - env: T=linux/centos6/2
@@ -109,6 +111,7 @@ matrix:
     - env: T=osx/10.11/3
     - env: T=rhel/7.6/3
     - env: T=rhel/8.0/3
+    - env: T=rhel/8.1b/3
     - env: T=freebsd/11.1/3
     - env: T=freebsd/12.0/3
     - env: T=linux/centos6/3
@@ -123,6 +126,7 @@ matrix:
     - env: T=osx/10.11/4
     - env: T=rhel/7.6/4
     - env: T=rhel/8.0/4
+    - env: T=rhel/8.1b/4
     - env: T=freebsd/11.1/4
     - env: T=freebsd/12.0/4
     - env: T=linux/centos6/4

test/integration/targets/firewalld/aliases

@@ -2,3 +2,4 @@ destructive
 shippable/posix/group3
 skip/freebsd
 skip/osx
+skip/rhel8.1b

test/integration/targets/ufw/aliases

@@ -3,6 +3,7 @@ skip/osx
 skip/freebsd
 skip/rhel8.0
 skip/rhel8.0b
+skip/rhel8.1b
 skip/docker
 needs/root
 destructive

test/runner/completion/remote.txt

@@ -3,3 +3,4 @@ freebsd/12.0 python=3.6,2.7 python_dir=/usr/local/bin
 osx/10.11 python=2.7 python_dir=/usr/local/bin
 rhel/7.6 python=2.7
 rhel/8.0 python=3.6
+rhel/8.1b python=3.6