fix: use seed properly and update docker image

Dockerfile

@@ -31,7 +31,7 @@ RUN curl -sSL https://install.python-poetry.org | python
 ENV PATH="$POETRY_HOME/bin:$PATH"
 
 # Install Solana CLI
-RUN sh -c "$(curl -sSfL https://release.solana.com/stable/install)"
+RUN sh -c "$(curl -sSfL https://release.solana.com/v1.14.17/install)"
 ENV PATH=$PATH:/root/.local/share/solana/install/active_release/bin
 
 
@@ -80,7 +80,7 @@ ARG APP_PATH
 
 # Install Solana CLI, we redo this step because this Docker target
 # starts from scratch without the earlier Solana installation
-RUN sh -c "$(curl -sSfL https://release.solana.com/stable/install)"
+RUN sh -c "$(curl -sSfL https://release.solana.com/v1.14.17/install"
 ENV PATH=$PATH:/root/.local/share/solana/install/active_release/bin
 
 ENV \

program_admin/publisher_program_instructions.py

@@ -73,8 +73,10 @@ def create_buffer_account(
  space: int,
  lamports: int,
 ) -> Tuple[PublicKey, TransactionInstruction]:
-
- seed = str(publisher_pubkey)
+ # The seed should be str but later is used in rust as
+ # &str and therefore we use latin1 encoding to map byte
+ # i to char i
+ seed = bytes(publisher_pubkey).decode("latin-1")
  new_account_pubkey = PublicKey.create_with_seed(
  base_pubkey,
  seed,