chore(deps): update actions/checkout action to v3 (#192)

Author: renovate-bot

.github/workflows/conformance.yaml

@@ -24,7 +24,7 @@ jobs:
       with:
         egress-policy: audit # TODO: change to 'egress-policy: block' after couple of runs
 
-    - uses: actions/checkout@dc323e67f16fb5f7663d20ff7941f27f5809e9b6 # v2.6.0
+    - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v3.5.2
 
     - name: Set up JDK ${{ matrix.java }}
       uses: actions/setup-java@d202f5dbf7256730fb690ec59f6381650114feb2 # v1.4.3

.github/workflows/lint.yaml

@@ -17,7 +17,7 @@ jobs:
       with:
         egress-policy: audit # TODO: change to 'egress-policy: block' after couple of runs
 
-    - uses: actions/checkout@dc323e67f16fb5f7663d20ff7941f27f5809e9b6 # v2.6.0
+    - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v3.5.2
     - name: Set up JDK
       uses: actions/setup-java@d202f5dbf7256730fb690ec59f6381650114feb2 # v1.4.3
       with:

.github/workflows/unit.yaml

@@ -22,7 +22,7 @@ jobs:
       with:
         egress-policy: audit # TODO: change to 'egress-policy: block' after couple of runs
 
-    - uses: actions/checkout@dc323e67f16fb5f7663d20ff7941f27f5809e9b6 # v2.6.0
+    - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v3.5.2
     - name: Set up JDK ${{ matrix.java }}
       uses: actions/setup-java@f0bb91606209742fe3ea40199be2f3ef195ecabf # v2.5.0
       with: