krb5 commit: Run Github Actions on ubuntu-latest (not 18.04)

[ghudson at mit.edu]

https://github.com/krb5/krb5/commit/d848af28e84e6eac5aa16cd10157ef4b2cf58a84
commit d848af28e84e6eac5aa16cd10157ef4b2cf58a84
Author: Greg Hudson <ghudson at mit.edu>
Date:   Mon Apr 3 16:00:37 2023 -0400

    Run Github Actions on ubuntu-latest (not 18.04)
    
    The ubuntu-18.04 image no longer works on Github Actions.  Run most
    jobs on ubuntu-latest instead.
    
    libresolv-wrapper does not work on ubuntu-22.04 at this time
    (Launchpad bug #2015570), so don't install it for now.  The URI
    discovery tests will be skipped until this is rectified.
    
    For the doc build, move doc-newest-sphix to ubuntu-latest; the Ubuntu
    version doesn't matter much for this build as it downloads sphinx from
    pypi.org.  Move the doc-older-sphinx to ubuntu-22.04 (currently the
    same as ubuntu-latest), skipping ubuntu-20.04 as its version of
    doxygen (1.18.17) doesn't correctly the type declaration for
    krb5_const_principal.

 .github/workflows/build.yml | 8 ++++----
 .github/workflows/doc.yml   | 6 +++---
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e7a58485a..68a4788ad 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -14,17 +14,17 @@ jobs:
                 name: [linux-clang, linux-clang-openssl, linux-gcc]
                 include:
                     - name: linux-clang
-                      os: ubuntu-18.04
+                      os: ubuntu-latest
                       compiler: clang
                       makevars: CPPFLAGS=-Werror
                       configureopts: --enable-asan
                     - name: linux-clang-openssl
-                      os: ubuntu-18.04
+                      os: ubuntu-latest
                       compiler: clang
                       makevars: CPPFLAGS=-Werror
                       configureopts: --with-crypto-impl=openssl
                     - name: linux-gcc
-                      os: ubuntu-18.04
+                      os: ubuntu-latest
                       compiler: gcc
         steps:
             - name: Checkout repository
@@ -33,7 +33,7 @@ jobs:
               if: startsWith(matrix.os, 'ubuntu')
               run: |
                 sudo apt-get update -qq
-                sudo apt-get install -y bison gettext keyutils ldap-utils libcmocka-dev libldap2-dev libkeyutils-dev libresolv-wrapper libsasl2-dev libssl-dev python3-kdcproxy python3-pip slapd tcsh
+                sudo apt-get install -y bison gettext keyutils ldap-utils libcmocka-dev libldap2-dev libkeyutils-dev libsasl2-dev libssl-dev python3-kdcproxy python3-pip slapd tcsh
                 pip3 install pyrad
             - name: Build
               env:
diff --git a/.github/workflows/doc.yml b/.github/workflows/doc.yml
index 75f467cde..f7f6b6b09 100644
--- a/.github/workflows/doc.yml
+++ b/.github/workflows/doc.yml
@@ -6,21 +6,21 @@ on:
 
 jobs:
     doc-older-sphinx:
-        runs-on: ubuntu-18.04
+        runs-on: ubuntu-22.04
         steps:
             - name: Checkout repository
               uses: actions/checkout at v1
             - name: Linux setup
               run: |
                 sudo apt-get update -qq
-                sudo apt-get install -y doxygen python3-lxml python3-pip python-sphinx
+                sudo apt-get install -y doxygen python3-lxml python3-pip python3-sphinx
                 pip3 install Cheetah3
             - name: Build documentation
               run: |
                 cd src/doc
                 make -f Makefile.in SPHINX_ARGS=-W htmlsrc
     doc-newest-sphinx:
-        runs-on: ubuntu-18.04
+        runs-on: ubuntu-latest
         steps:
             - name: Checkout repository
               uses: actions/checkout at v1