Remove Postgres 9.3 and MariaDB 10.0 support

.scrutinizer.yml

@@ -21,7 +21,7 @@ before_commands:
 tools:
     external_code_coverage:
         timeout: 3600
-        runs: 29 # 24x Travis (jobs with COVERAGE=yes) + 3x AppVeyor (jobs with coverage=yes) + 2x ContinuousPHP
+        runs: 26 # 21x Travis (jobs with COVERAGE=yes) + 3x AppVeyor (jobs with coverage=yes) + 2x ContinuousPHP
 
 filter:
     excluded_paths:

.travis.yml

@@ -143,11 +143,6 @@ jobs:
         - docker
       before_script:
         - bash ./tests/travis/install-mysql-8.0.sh
-    - stage: Test
-      php: 7.3
-      env: DB=mariadb MARIADB_VERSION=10.0 COVERAGE=yes
-      addons:
-        mariadb: 10.0
     - stage: Test
       php: 7.3
       env: DB=mariadb MARIADB_VERSION=10.1 COVERAGE=yes
@@ -163,11 +158,6 @@ jobs:
       env: DB=mariadb MARIADB_VERSION=10.3 COVERAGE=yes
       addons:
         mariadb: 10.3
-    - stage: Test
-      php: 7.3
-      env: DB=mariadb.mysqli MARIADB_VERSION=10.0 COVERAGE=yes
-      addons:
-        mariadb: 10.0
     - stage: Test
       php: 7.3
       env: DB=mariadb.mysqli MARIADB_VERSION=10.1 COVERAGE=yes
@@ -183,13 +173,6 @@ jobs:
       env: DB=mariadb.mysqli MARIADB_VERSION=10.3 COVERAGE=yes
       addons:
         mariadb: 10.3
-    - stage: Test
-      php: 7.3
-      env: DB=pgsql POSTGRESQL_VERSION=9.3 COVERAGE=yes
-      services:
-        - postgresql
-      addons:
-        postgresql: "9.3"
     - stage: Test
       php: 7.3
       env: DB=pgsql POSTGRESQL_VERSION=9.4 COVERAGE=yes
@@ -218,7 +201,7 @@ jobs:
       services:
         - postgresql
       addons:
-        postgresql: "9.6"
+        postgresql: "10.0"
       before_script:
         - bash ./tests/travis/install-postgres-10.sh
     - stage: Test