chore: update libpq version to 17.6 and clear PQ_FLAGS in workflows

Author: mliezun

.github/workflows/build-and-cache-libpq.yml

@@ -41,23 +41,9 @@ on:
 # across workflows.
 
 env:
-  # Latest release: https://www.postgresql.org/ftp/source/
-  LIBPQ_VERSION: "18.0"
-  # Note: On windows the latest version can be found at
-  # https://vcpkg.io/en/package/libpq
-  # However the command line tool doesn't have a flag to specify to install
-  # a specific version, so whatever you get you keep it.
-  # https://github.com/microsoft/vcpkg/discussions/25622
-
-  # Latest release: https://www.openssl.org/source/
+  LIBPQ_VERSION: "17.6"
   OPENSSL_VERSION: "3.5.4"
-
-  # A string to differentiate build cacke keys to allow building different
-  # flavours of libpq in different branches without mixups. Currently used to
-  # make sure that libpq packages built for Psycopg 3.2 and 3.3 don't mix (in
-  # order to change the gssencmode default only on 3.3). We may use it for
-  # different reasons in the future.
-  PQ_FLAGS: "-gssencmode-disable"
+  PQ_FLAGS: ""
 
 concurrency:
   # Cancel older requests of the same workflow in the same branch.
@@ -98,7 +84,7 @@ jobs:
           CIBW_SKIP: "cp31?t-*"
           CIBW_MANYLINUX_X86_64_IMAGE: manylinux2014
           CIBW_MANYLINUX_I686_IMAGE: manylinux2014
-          CIBW_MANYLINUX_AARCH64_IMAGE: manylinux_2_28
+          CIBW_MANYLINUX_AARCH64_IMAGE: manylinux2014
           CIBW_MANYLINUX_PPC64LE_IMAGE: manylinux2014
           CIBW_MANYLINUX_RISCV64_IMAGE: quay.io/pypa/manylinux_2_39_riscv64
           CIBW_BUILD: cp313-${{matrix.platform}}_${{matrix.arch}}

.github/workflows/packages.yml

@@ -15,12 +15,7 @@ env:
   PIP_BREAK_SYSTEM_PACKAGES: "1"
   LIBPQ_VERSION: "17.6"
   OPENSSL_VERSION: "3.5.4"
-  # A string to differentiate build cache keys to allow building different
-  # flavours of libpq in different branches without mixups. Currently used to
-  # make sure that libpq packages built for Psycopg 3.2 and 3.3 don't mix (in
-  # order to change the gssencmode default only on 3.3). We may use it for
-  # different reasons in the future.
-  PQ_FLAGS: "-gssencmode-disable"
+  PQ_FLAGS: ""
 
 jobs:
   sdist:  # {{{