Fix the signature link, which is for security.txt rather than the pub keys (#94)

Adjustment to also cover `security.txt.asc` signature file, which should have been included in PR92.

Author: jonasbardino

Dockerfile.centos7

@@ -1519,10 +1519,10 @@ RUN ln -s index-${DOMAIN}.html $MIG_ROOT/state/wwwpublic/index.html && \
  $MIG_ROOT/state/wwwpublic/site-privacy-policy.pdf && \
  ln -s security-${DOMAIN}.txt \
  $MIG_ROOT/state/wwwpublic/.well-known/security.txt && \
+ ln -s security-${DOMAIN}.txt.asc \
+ $MIG_ROOT/state/wwwpublic/.well-known/security.txt.asc && \
  ln -s security-pub-keys-${DOMAIN}.txt \
  $MIG_ROOT/state/wwwpublic/.well-known/security-pub-keys.txt && \
- ln -s security-pub-keys-${DOMAIN}.txt.asc \
- $MIG_ROOT/state/wwwpublic/.well-known/security-pub-keys.txt.asc && \
  ln -s security-disclosure-policy-${DOMAIN}.txt \
  $MIG_ROOT/state/wwwpublic/.well-known/security-disclosure-policy.txt && \
  chown -R $USER:$GROUP $MIG_ROOT/state/wwwpublic/*.html

Dockerfile.rocky8

@@ -1543,10 +1543,10 @@ RUN ln -s index-${DOMAIN}.html $MIG_ROOT/state/wwwpublic/index.html && \
  $MIG_ROOT/state/wwwpublic/site-privacy-policy.pdf && \
  ln -s security-${DOMAIN}.txt \
  $MIG_ROOT/state/wwwpublic/.well-known/security.txt && \
+ ln -s security-${DOMAIN}.txt.asc \
+ $MIG_ROOT/state/wwwpublic/.well-known/security.txt.asc && \
  ln -s security-pub-keys-${DOMAIN}.txt \
  $MIG_ROOT/state/wwwpublic/.well-known/security-pub-keys.txt && \
- ln -s security-pub-keys-${DOMAIN}.txt.asc \
- $MIG_ROOT/state/wwwpublic/.well-known/security-pub-keys.txt.asc && \
  ln -s security-disclosure-policy-${DOMAIN}.txt \
  $MIG_ROOT/state/wwwpublic/.well-known/security-disclosure-policy.txt && \
  chown -R $USER:$GROUP $MIG_ROOT/state/wwwpublic/*.html

Dockerfile.rocky9

@@ -1417,10 +1417,10 @@ RUN ln -s index-${DOMAIN}.html $MIG_ROOT/state/wwwpublic/index.html && \
  $MIG_ROOT/state/wwwpublic/site-privacy-policy.pdf && \
  ln -s security-${DOMAIN}.txt \
  $MIG_ROOT/state/wwwpublic/.well-known/security.txt && \
+ ln -s security-${DOMAIN}.txt.asc \
+ $MIG_ROOT/state/wwwpublic/.well-known/security.txt.asc && \
  ln -s security-pub-keys-${DOMAIN}.txt \
  $MIG_ROOT/state/wwwpublic/.well-known/security-pub-keys.txt && \
- ln -s security-pub-keys-${DOMAIN}.txt.asc \
- $MIG_ROOT/state/wwwpublic/.well-known/security-pub-keys.txt.asc && \
  ln -s security-disclosure-policy-${DOMAIN}.txt \
  $MIG_ROOT/state/wwwpublic/.well-known/security-disclosure-policy.txt && \
  chown -R $USER:$GROUP $MIG_ROOT/state/wwwpublic/*.html