Add Postgres 18 packaging tests (#8861)

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Signed-off-by: Philip Krauss <[email protected]>
(cherry picked from commit e66a87f)

Author: philkra

.github/workflows/apt-arm-packages.yaml

@@ -21,7 +21,7 @@ jobs:
       fail-fast: false
       matrix:
         image: [ "debian:11-slim", "debian:12-slim", "debian:13-slim", "ubuntu:22.04", "ubuntu:24.04" ]
-        pg: [ 15, 16, 17 ]
+        pg: [ 15, 16, 17, 18 ]
 
     steps:
     - name: Setup emulation

.github/workflows/apt-packages.yaml

@@ -25,7 +25,7 @@ jobs:
       fail-fast: false
       matrix:
         image: [ "debian:11-slim", "debian:12-slim", "debian:13-slim", "ubuntu:22.04", "ubuntu:24.04" ]
-        pg: [ 15, 16, 17 ]
+        pg: [ 15, 16, 17, 18 ]
         license: [ "TSL", "Apache"]
         include:
           - license: Apache

.github/workflows/docker-images.yaml

@@ -41,9 +41,11 @@ jobs:
             "timescaledb:latest-pg15",
             "timescaledb:latest-pg16",
             "timescaledb:latest-pg17",
+            "timescaledb:latest-pg18",
             "timescaledb-ha:pg15",
             "timescaledb-ha:pg16",
             "timescaledb-ha:pg17",
+            "timescaledb-ha:pg18",
           ]
 
     steps:

.github/workflows/rpm-packages.yaml

@@ -24,7 +24,7 @@ jobs:
       fail-fast: false
       matrix:
         image: [ "rockylinux:8", "rockylinux:9" ]
-        pg: [ 15, 16, 17 ]
+        pg: [ 15, 16, 17, 18 ]
         license: [ "TSL", "Apache"]
         include:
           - license: Apache