Pin CLI version in buildspecs

Author: dagnir

buildspecs/release-javadoc.yml

@@ -6,7 +6,7 @@ phases:
       java: "$JAVA_RUNTIME"
 
     commands:
-    - pip install awscli --upgrade --user
+    - pip install awscli==1.19.34 --upgrade --user
 
   pre_build:
     commands:

buildspecs/release-to-maven.yml

@@ -7,7 +7,7 @@ phases:
     - apt-get install python3 python3-pip -y
     - update-alternatives --install /usr/bin/python python /usr/bin/python3 10
     - update-alternatives --install /usr/bin/pip pip /usr/bin/pip3 10
-    - pip install awscli --upgrade --user
+    - pip install awscli==1.19.34 --upgrade --user
     - pip install rsa
     - pip install typing