Skip actix runtime tests in CI

These are largely the same as the tokio runtimes, and whether they
compile is still checked.

Author: jplatte

.github/workflows/sqlx.yml

@@ -146,6 +146,8 @@ jobs:
     strategy:
       matrix:
         runtime: [async-std-native-tls, tokio-native-tls, actix-native-tls, async-std-rustls, tokio-rustls, actix-rustls]
+    if: >
+      !(github.event_name == 'pull_request' && startsWith(matrix.runtime, 'actix'))
     needs: check
     steps:
       - uses: actions/checkout@v2
@@ -182,6 +184,8 @@ jobs:
       matrix:
         postgres: [12, 10, 9_6, 9_5]
         runtime: [async-std-native-tls, tokio-native-tls, actix-native-tls, async-std-rustls, tokio-rustls, actix-rustls]
+    if: >
+      !(github.event_name == 'pull_request' && startsWith(matrix.runtime, 'actix'))
     needs: check
     steps:
       - uses: actions/checkout@v2
@@ -234,6 +238,8 @@ jobs:
       matrix:
         mysql: [8, 5_7, 5_6]
         runtime: [async-std-native-tls, tokio-native-tls, actix-native-tls, async-std-rustls, tokio-rustls, actix-rustls]
+    if: >
+      !(github.event_name == 'pull_request' && startsWith(matrix.runtime, 'actix'))
     needs: check
     steps:
       - uses: actions/checkout@v2
@@ -277,6 +283,8 @@ jobs:
       matrix:
         mariadb: [10_5, 10_4, 10_3, 10_2, 10_1]
         runtime: [async-std-native-tls, tokio-native-tls, actix-native-tls, async-std-rustls, tokio-rustls, actix-rustls]
+    if: >
+      !(github.event_name == 'pull_request' && startsWith(matrix.runtime, 'actix'))
     needs: check
     steps:
       - uses: actions/checkout@v2
@@ -321,6 +329,8 @@ jobs:
       matrix:
         mssql: [2019]
         runtime: [async-std-native-tls, tokio-native-tls, actix-native-tls, async-std-rustls, tokio-rustls, actix-rustls]
+    if: >
+      !(github.event_name == 'pull_request' && startsWith(matrix.runtime, 'actix'))
     needs: check
     steps:
       - uses: actions/checkout@v2