ci: add almalinux platform to packaging

Almalinux 8, 9 needs to be supported and wasn't included to the platform
list, but `packpack/packpack` supports it.

After the patch this platform has been included.

Closes #128

.github/workflows/packaging.yml

@@ -15,6 +15,8 @@ jobs:
       fail-fast: false
       matrix:
         platform:
+          - { os: 'almalinux', dist: '8'}
+          - { os: 'almalinux', dist: '9'}
           - { os: 'debian', dist: 'stretch' }
           - { os: 'debian', dist: 'buster' }
           - { os: 'debian', dist: 'bullseye' }

rpm/prebuild.sh

@@ -2,4 +2,18 @@
 
 set -exu  # Strict shell (w/o -o pipefail)
 
-curl -LsSf https://www.tarantool.io/release/1.10/installer.sh | sudo bash
+if [ -f /etc/os-release ]; then
+    . /etc/os-release
+    os="$ID"
+    dist="$VERSION_ID"
+else
+    os=""
+    dist=""
+fi
+
+if [[ "$os" == "almalinux" && "$dist" == "9" ]]; then
+    curl -LsSf https://tarantool.io/release/1.10/installer.sh | \
+    sed '2s/^/echo 9 > \/etc\/centos-release\n/' | sudo bash
+else
+    curl -LsSf https://tarantool.io/release/1.10/installer.sh | sudo bash
+fi