deprecate github actions for Debian-10 and Ubuntu-18

Summary:
The CacheLib OSS build is broken while building mvfst due to outdated linux header files
linux/if_xdp.h (https://fburl.com/code/wc24j9xb). Since Debian-10 and Ubuntu-18 had been already
EOLed, this change deprecates the corresponding build actions by disabling the periodic build and
on-demand build (i.e., PR and release tag push).

Reviewed By: haowu14

Differential Revision: D54830525

fbshipit-source-id: 1d7c01b0bcc8138ebebefa5e00d6eeac96319fce

Author: Jaesoo Lee

.github/workflows/build-cachelib-debian-10.yml

@@ -11,15 +11,13 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+# NOTE:
+# The Debian-10 action had been deprecated because it had been EOLed
+# and the build is broken due to missing kernel headers or definitions
+# (e.g., linux/if_xdp.h)
 name: build-cachelib-debian-10
 on:
-  push:
-    tags:
-      - 'v*'
-  pull_request:
   workflow_dispatch:
-  schedule:
-     - cron:  '0 13 * * *'
 jobs:
   build-cachelib-debian-10:
     name: "Debian-10 (Buster) - Build CacheLib with all dependencies"

.github/workflows/build-cachelib-ubuntu-18.yml

@@ -18,13 +18,7 @@
 # Instead, use "ubuntu-latest" and run Ubuntu-18.04 inside a docker container.
 name: build-cachelib-ubuntu-18
 on:
-  push:
-    tags:
-      - 'v*'
-  pull_request:
   workflow_dispatch:
-  schedule:
-    - cron:  '0 5 * * 2,4,6'
 jobs:
   build-cachelib-ubuntu-18:
     name: "Ubuntu-18 - Build CacheLib with all dependencies"

README.md

@@ -86,10 +86,8 @@ Clicking on a badge will show you the recent builds for that OS. If your target
 - [![CentOS 8.1](https://github.com/facebook/cachelib/actions/workflows/build-cachelib-centos-8-1.yml/badge.svg?event=schedule)](https://github.com/facebook/cachelib/actions/workflows/build-cachelib-centos-8-1.yml?query=event%3Aschedule)
 - [![CentOS 8.5](https://github.com/facebook/cachelib/actions/workflows/build-cachelib-centos-8-5.yml/badge.svg?event=schedule)](https://github.com/facebook/cachelib/actions/workflows/build-cachelib-centos-8-5.yml?query=event%3Aschedule)
 - [![CentOS 9](https://github.com/facebook/cachelib/actions/workflows/build-cachelib-centos-9.yml/badge.svg?event=schedule)](https://github.com/facebook/cachelib/actions/workflows/build-cachelib-centos-9.yml?query=event%3Aschedule)
-- [![Debian 10](https://github.com/facebook/cachelib/actions/workflows/build-cachelib-debian-10.yml/badge.svg?event=schedule)](https://github.com/facebook/cachelib/actions/workflows/build-cachelib-debian-10.yml?query=event%3Aschedule)
 - [![Fedora 36](https://github.com/facebook/cachelib/actions/workflows/build-cachelib-fedora-36.yml/badge.svg?event=schedule)](https://github.com/facebook/cachelib/actions/workflows/build-cachelib-fedora-36.yml?query=event%3Aschedule)
 - [![Rocky Linux 8](https://github.com/facebook/cachelib/actions/workflows/build-cachelib-rockylinux-8.yml/badge.svg?event=schedule)](https://github.com/facebook/cachelib/actions/workflows/build-cachelib-rockylinux-8.yml?query=event%3Aschedule)
 - [![Rocky Linux 9](https://github.com/facebook/cachelib/actions/workflows/build-cachelib-rockylinux-9.yml/badge.svg?event=schedule)](https://github.com/facebook/cachelib/actions/workflows/build-cachelib-rockylinux-9.yml?query=event%3Aschedule)
-- [![Ubuntu 18](https://github.com/facebook/cachelib/actions/workflows/build-cachelib-ubuntu-18.yml/badge.svg?event=schedule)](https://github.com/facebook/cachelib/actions/workflows/build-cachelib-ubuntu-18.yml?query=event%3Aschedule)
 - [![Ubuntu 20](https://github.com/facebook/cachelib/actions/workflows/build-cachelib-ubuntu-20.yml/badge.svg?event=schedule)](https://github.com/facebook/cachelib/actions/workflows/build-cachelib-ubuntu-20.yml?query=event%3Aschedule)
 - [![Ubuntu 22](https://github.com/facebook/cachelib/actions/workflows/build-cachelib-ubuntu-22.yml/badge.svg?event=schedule)](https://github.com/facebook/cachelib/actions/workflows/build-cachelib-ubuntu-22.yml?query=event%3Aschedule)