go back to using main branch of test models now that it's fixed and passing

Author: Elizabeth Perl

.github/workflows/run-ss3-bootstrap.yml

@@ -39,7 +39,6 @@ jobs:
         with:
           repository: 'nmfs-ost/ss3-test-models'
           path: test-models-repo
-          ref: lmin_lenbin_fix
 
       - name: Install libcurl & other necessary packages
         run: |

.github/workflows/run-ss3-mcmc.yml

@@ -38,7 +38,6 @@ jobs:
         with:
           repository: 'nmfs-ost/ss3-test-models'
           path: test-models-repo
-          ref: lmin_lenbin_fix
 
       - name: Update Ubuntu packages
         run: |

.github/workflows/run-ss3-no-est.yml

@@ -43,7 +43,6 @@ jobs:
         with:
           repository: 'nmfs-ost/ss3-test-models'
           path: test-models-repo
-          ref: lmin_lenbin_fix
 
       - name: Update Ubuntu packages
         run: |

.github/workflows/run-ss3-with-est.yml

@@ -39,7 +39,6 @@ jobs:
         with:
           repository: 'nmfs-ost/ss3-test-models'
           path: test-models-repo
-          ref: lmin_lenbin_fix
 
       - name: Update Ubuntu packages
         run: |

.github/workflows/test-r4ss-with-ss3.yml

@@ -39,7 +39,6 @@ jobs:
         with:
           repository: 'nmfs-ost/ss3-test-models'
           path: test-models-repo
-          ref: lmin_lenbin_fix
 
       - name: Install libcurl and other necessary linux packages
         run: |