[ci] Update alpine in 2 more images (#37539)

Closes #37539

COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37539 from eugeneo:alpine-update dc230dcc36
PiperOrigin-RevId: 666388258

templates/tools/dockerfile/test/cxx_alpine_x64/Dockerfile.template

@@ -14,12 +14,13 @@
   # See the License for the specific language governing permissions and
   # limitations under the License.
   
-  FROM alpine:3.15
+  FROM alpine:3.17
   
   # Install Git and basic packages.
   RUN apk update && apk add ${'\\'}
     autoconf ${'\\'}
     automake ${'\\'}
+    bash ${'\\'}
     bzip2 ${'\\'}
     build-base ${'\\'}
     cmake ${'\\'}

templates/tools/dockerfile/test/python_alpine_x64/Dockerfile.template

@@ -14,12 +14,13 @@
   # See the License for the specific language governing permissions and
   # limitations under the License.
 
-  FROM alpine:3.15
+  FROM alpine:3.17
 
   # Install Git and basic packages.
   RUN apk update && apk add \
     autoconf \
     automake \
+    bash ${'\\'}
     bzip2 \
     build-base \
     cmake \
@@ -40,8 +41,6 @@
 
   <%include file="../../git_avoid_dubious_ownership_error.include"/>
 
-  RUN ln -s /usr/bin/python3 /usr/bin/python
-
   # Install Python packages from PyPI
   RUN python3 -m pip install --upgrade pip==19.3.1
 

tools/dockerfile/test/cxx_alpine_x64.current_version

@@ -1 +1 @@
-us-docker.pkg.dev/grpc-testing/testing-images-public/cxx_alpine_x64:e515716fa53187d8eaa9d2cb606e9f6cb1d21393@sha256:5beda19bcf186b6c9606f4265e38c99bb4308f25bc0987e0fc15164f3c205232
+us-docker.pkg.dev/grpc-testing/testing-images-public/cxx_alpine_x64:0806b6d19bc92699c32c4c8d6e293f44b05f6322@sha256:10587bea5d163bf5c34c6157ebd1863d22863d9d38bbaf5135ffc6fbf2b73004

tools/dockerfile/test/cxx_alpine_x64/Dockerfile

@@ -12,12 +12,13 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM alpine:3.15
+FROM alpine:3.17
 
 # Install Git and basic packages.
 RUN apk update && apk add \
   autoconf \
   automake \
+  bash \
   bzip2 \
   build-base \
   cmake \

tools/dockerfile/test/python_alpine_x64.current_version

@@ -1 +1 @@
-us-docker.pkg.dev/grpc-testing/testing-images-public/python_alpine_x64:6f340690c07d16a23deaa8b3270c634631ddd865@sha256:c541f0ce00ca542ed4ae86870b6b73c929227127c13e532d98a9afd28604b830
+us-docker.pkg.dev/grpc-testing/testing-images-public/python_alpine_x64:49f0e3830de77a1a4891ad944774dc6f758d8599@sha256:0a4e3c166fb676d85ea26d9fffec3858d59a2f243a3acc1c2f9bd293a590a98c

tools/dockerfile/test/python_alpine_x64/Dockerfile

@@ -12,10 +12,11 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM alpine:3.15
+FROM alpine:3.17
 
 # Install Git and basic packages.
-RUN apk update && apk add   autoconf   automake   bzip2   build-base   cmake   ccache   curl   gcc   git   libtool   linux-headers   make   perl   strace   python3-dev   py3-pip   unzip   wget   zip
+RUN apk update && apk add   autoconf   automake   bash \
+  bzip2   build-base   cmake   ccache   curl   gcc   git   libtool   linux-headers   make   perl   strace   python3-dev   py3-pip   unzip   wget   zip
 
 #=================
 # Setup git to access working directory across docker boundary.
@@ -26,8 +27,6 @@ RUN git config --global --add safe.directory '*'
 RUN git config --global protocol.file.allow always
 
 
-RUN ln -s /usr/bin/python3 /usr/bin/python
-
 # Install Python packages from PyPI
 RUN python3 -m pip install --upgrade pip==19.3.1
 

tools/run_tests/run_tests.py

@@ -885,7 +885,7 @@ class PythonLanguage(object):
         elif args.compiler == "pypy3":
             return (pypy32_config,)
         elif args.compiler == "python_alpine":
-            return (python39_config,)
+            return (python310_config,)
         elif args.compiler == "all_the_cpythons":
             return (
                 python38_config,