Fix push in workflows (#60)

Image push was broken in #56 , let's try to fix it.

Author: Bronek

.github/workflows/debian.yml

@@ -17,7 +17,7 @@ defaults:
     shell: bash
 
 env:
-  PUSH: ${{ github.event == 'push' && github.ref_type == 'branch' && github.ref_name == github.event.repository.default_branch }}
+  PUSH: ${{ github.ref_type == 'branch' && github.ref_name == github.event.repository.default_branch }}
   CONTAINER_REGISTRY: ghcr.io
   BUILDKIT_PROGRESS: plain
   CONAN_VERSION: 2.19.1
@@ -161,7 +161,7 @@ jobs:
           retention-days: 1
 
   merge:
-    if: ${{ github.event == 'push' && github.ref_type == 'branch' && github.ref_name == github.event.repository.default_branch }}
+    if: ${{ github.ref_type == 'branch' && github.ref_name == github.event.repository.default_branch }}
     strategy:
       matrix:
         os:

.github/workflows/gcc.yml

@@ -16,7 +16,7 @@ defaults:
     shell: bash
 
 env:
-  PUSH: ${{ github.event == 'push' && github.ref_type == 'branch' && github.ref_name == github.event.repository.default_branch }}
+  PUSH: ${{ github.ref_type == 'branch' && github.ref_name == github.event.repository.default_branch }}
   CONTAINER_REGISTRY: ghcr.io
   BUILDKIT_PROGRESS: plain
 
@@ -109,7 +109,7 @@ jobs:
           retention-days: 1
 
   merge:
-    if: ${{ github.event == 'push' && github.ref_type == 'branch' && github.ref_name == github.event.repository.default_branch }}
+    if: ${{ github.ref_type == 'branch' && github.ref_name == github.event.repository.default_branch }}
     strategy:
       matrix:
         os:

.github/workflows/rhel.yml

@@ -17,7 +17,7 @@ defaults:
     shell: bash
 
 env:
-  PUSH: ${{ github.event == 'push' && github.ref_type == 'branch' && github.ref_name == github.event.repository.default_branch }}
+  PUSH: ${{ github.ref_type == 'branch' && github.ref_name == github.event.repository.default_branch }}
   CONTAINER_REGISTRY: ghcr.io
   REDHAT_REGISTRY: registry.redhat.io
   BUILDKIT_PROGRESS: plain
@@ -138,7 +138,7 @@ jobs:
           retention-days: 1
 
   merge:
-    if: ${{ github.event == 'push' && github.ref_type == 'branch' && github.ref_name == github.event.repository.default_branch }}
+    if: ${{ github.ref_type == 'branch' && github.ref_name == github.event.repository.default_branch }}
     strategy:
       matrix:
         os:

.github/workflows/tools-rippled.yml

@@ -16,7 +16,7 @@ defaults:
     shell: bash
 
 env:
-  PUSH: ${{ github.event == 'push' && github.ref_type == 'branch' && github.ref_name == github.event.repository.default_branch }}
+  PUSH: ${{ github.ref_type == 'branch' && github.ref_name == github.event.repository.default_branch }}
   CONTAINER_REGISTRY: ghcr.io
   BUILDKIT_PROGRESS: plain
   CMAKE_VERSION: 3.31.6
@@ -115,7 +115,7 @@ jobs:
           retention-days: 1
 
   merge:
-    if: ${{ github.event == 'push' && github.ref_type == 'branch' && github.ref_name == github.event.repository.default_branch }}
+    if: ${{ github.ref_type == 'branch' && github.ref_name == github.event.repository.default_branch }}
     strategy:
       matrix:
         tool:

.github/workflows/ubuntu.yml

@@ -17,7 +17,7 @@ defaults:
     shell: bash
 
 env:
-  PUSH: ${{ github.event == 'push' && github.ref_type == 'branch' && github.ref_name == github.event.repository.default_branch }}
+  PUSH: ${{ github.ref_type == 'branch' && github.ref_name == github.event.repository.default_branch }}
   CONTAINER_REGISTRY: ghcr.io
   BUILDKIT_PROGRESS: plain
   CONAN_VERSION: 2.19.1
@@ -140,7 +140,7 @@ jobs:
           retention-days: 1
 
   merge:
-    if: ${{ github.event == 'push' && github.ref_type == 'branch' && github.ref_name == github.event.repository.default_branch }}
+    if: ${{ github.ref_type == 'branch' && github.ref_name == github.event.repository.default_branch }}
     strategy:
       matrix:
         os: