Update allowed warnings limits

.github/workflows/linux.yml

@@ -12,19 +12,19 @@ jobs:
           - name: GCC-5 (Ubuntu 16.04)
             os: ubuntu-16.04
             flags: -c gcc
-            max_warnings: 309
+            max_warnings: 304
           - name: GCC-7 (Ubuntu 18.04)
             os: ubuntu-18.04
             flags: -c gcc
-            max_warnings: 316
+            max_warnings: 307
           - name: GCC-9 (Ubuntu 18.04)
             os: ubuntu-18.04
             flags: -c gcc -v 9
-            max_warnings: 339
+            max_warnings: 330
           - name: Clang-8 (Ubuntu 18.04)
             os: ubuntu-18.04
             flags: -c clang -v 8
-            max_warnings: 175
+            max_warnings: 170
     steps:
       - uses: actions/checkout@v1
       - run:  sudo apt-get update

.github/workflows/macos.yml

@@ -11,10 +11,10 @@ jobs:
         conf:
           - name: Clang
             flags: -c clang
-            max_warnings: 227
+            max_warnings: 222
           - name: GCC-9
             flags: -c gcc -v 9
-            max_warnings: 326
+            max_warnings: 317
     steps:
       - uses: actions/checkout@v1
       - name: Install C++ compiler and libraries

.github/workflows/windows.yml

@@ -1,10 +1,10 @@
 name: Windows builds
 on: push
 env:
-  MAX_WARNINGS_GCC_32bit_Debug:     243
-  MAX_WARNINGS_GCC_64bit_Debug:     359
-  MAX_WARNINGS_Clang_32bit_Debug:   105
-  MAX_WARNINGS_Clang_64bit_Debug:   160
+  MAX_WARNINGS_GCC_32bit_Debug:     234
+  MAX_WARNINGS_GCC_64bit_Debug:     350
+  MAX_WARNINGS_Clang_32bit_Debug:   100
+  MAX_WARNINGS_Clang_64bit_Debug:   155
 
 jobs: